MEDROXYPROGESTERONE ACETATE- medroxyprogesterone acetate injection, suspension 
Greenstone LLC

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HIGHLIGHTS OF PRESCRIBING INFORMATION

These highlights do not include all the information needed to use MEDROXYPROGESTERONE ACETATE (MPA) Injectable Suspension, USP safely and effectively. See full prescribing information for MPA INJECTABLE SUSPENSION, USP.

MEDROXYPROGESTERONE ACETATE (MPA) Injectable Suspension, USP, for intramuscular use
Initial U.S. Approval: 1959

WARNING: LOSS OF BONE MINERAL DENSITY

See full prescribing information for complete boxed warning.

Women who use Medroxyprogesterone Acetate (MPA) Injectable Suspension, USP may lose significant bone mineral density. Bone loss is greater with increasing duration of use and may not be completely reversible. (5.1)
It is unknown if use of MPA Injectable Suspension, USP during adolescence or early adulthood, a critical period of bone accretion, will reduce peak bone mass and increase the risk for osteoporotic fracture in later life. (5.1)
MPA Injectable Suspension, USP is not recommended as a long-term (i.e., longer than 2 years) birth control method unless other options are considered inadequate. (1, 5.1)

RECENT MAJOR CHANGES

Contraindications, Pregnancy (4)

Removed 4/2024

INDICATIONS AND USAGE

Medroxyprogesterone Acetate (MPA) Injectable Suspension, USP is a progestin indicated for use by females of reproductive potential to prevent pregnancy. (1)

Limitations of Use:

The use of MPA Injectable Suspension, USP is not recommended as a long-term (i.e., longer than 2 years) birth control method unless other options are considered inadequate. (1, 5.1)

DOSAGE AND ADMINISTRATION

The recommended dose is 150 mg of MPA Injectable Suspension, USP every 3 months (13 weeks) administered by deep, intramuscular (IM) injection in the gluteal or deltoid muscle. (2.1)

DOSAGE FORMS AND STRENGTHS

Vials containing sterile aqueous suspension: 150 mg per mL (3)
Prefilled syringes: prefilled syringes are available packaged with 22‑gauge × 1 1/2 inch Terumo® SurGuard™ Needles. (3)

CONTRAINDICATIONS

Active thrombophlebitis, or current or history of thromboembolic disorders, or cerebral vascular disease. (4)
Known or suspected malignancy of breast. (4)
Known hypersensitivity to MPA Injectable Suspension, USP (medroxyprogesterone acetate or any of its other ingredients). (4)
Significant liver disease. (4)
Undiagnosed vaginal bleeding. (4)

WARNINGS AND PRECAUTIONS

Thromboembolic Disorders: Discontinue MPA Injectable Suspension, USP in patients who develop thrombosis. (5.2)
Cancer Risks: Monitor women with a strong family history of breast cancer carefully. (5.3)
Ectopic Pregnancy: Consider ectopic pregnancy if a woman using MPA Injectable Suspension, USP becomes pregnant or complains of severe abdominal pain. (5.4)
Anaphylaxis and Anaphylactoid Reactions: Provide emergency medical treatment. (5.5)
Liver Function: Discontinue MPA Injectable Suspension, USP if jaundice or disturbances of liver function develop. (5.7)
Carbohydrate Metabolism: Monitor diabetic patients carefully. (5.12)

ADVERSE REACTIONS

Most common adverse reactions (incidence >5%): menstrual irregularities (bleeding or spotting) 57% at 12 months, 32% at 24 months, abdominal pain/discomfort 11%, weight gain >10 lb at 24 months 38%, dizziness 6%, headache 17%, nervousness 11%, decreased libido 6%. (6.1)

To report SUSPECTED ADVERSE REACTIONS, contact Greenstone LLC. at 1-800-438-1985 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

DRUG INTERACTIONS

Drugs or herbal products that induce certain enzymes, including CYP3A4, may decrease the effectiveness of contraceptive drug products. Counsel patients to use a back-up method or alternative method of contraception when enzyme inducers are used with MPA Injectable Suspension, USP. (7.1)

USE IN SPECIFIC POPULATIONS

Pregnancy: Discontinue if pregnancy occurs (8.1).
Lactation: Detectable amounts of drug have been identified in the milk of mothers receiving MPA Injectable Suspension, USP. (8.2)
Pediatric Patients: MPA Injectable Suspension, USP is not indicated before menarche. (8.4)

See 17 for PATIENT COUNSELING INFORMATION and FDA-approved patient labeling.

Revised: 8/2024

FULL PRESCRIBING INFORMATION: CONTENTS*

WARNING: LOSS OF BONE MINERAL DENSITY

1 INDICATIONS AND USAGE

2 DOSAGE AND ADMINISTRATION

2.1 Prevention of Pregnancy

2.2 Switching from Other Methods of Contraception

3 DOSAGE FORMS AND STRENGTHS

4 CONTRAINDICATIONS

5 WARNINGS AND PRECAUTIONS

5.1 Loss of Bone Mineral Density

5.2 Thromboembolic Disorders

5.3 Cancer Risks

5.4 Ectopic Pregnancy

5.5 Anaphylaxis and Anaphylactoid Reaction

5.6 Injection Site Reactions

5.7 Liver Function

5.8 Convulsions

5.9 Depression

5.10 Bleeding Irregularities

5.11 Weight Gain

5.12 Carbohydrate Metabolism

5.13 Fluid Retention

5.14 Return of Fertility

5.15 Sexually Transmitted Infections

5.16 Monitoring

5.17 Interference with Laboratory Tests

6 ADVERSE REACTIONS

6.1 Clinical Trials Experience

6.2 Post-Marketing Experience

7 DRUG INTERACTIONS

7.1 Changes in Contraceptive Effectiveness Associated with CoAdministration of Other Products

7.2 Laboratory Test Interactions

8 USE IN SPECIFIC POPULATIONS

8.1 Pregnancy

8.2 Lactation

8.3 Females and Males of Reproductive Potential

8.4 Pediatric Use

8.5 Geriatric Use

11 DESCRIPTION

12 CLINICAL PHARMACOLOGY

12.1 Mechanism of Action

12.2 Pharmacodynamics

12.3 Pharmacokinetics

13 NONCLINICAL TOXICOLOGY

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility

14 CLINICAL STUDIES

14.1 Contraception

14.2 Bone Mineral Density Changes in Women Treated with MPA

14.3 Bone Mineral Density Changes in Adolescent Females (12 to 18 Years of Age) Treated with MPA

14.4 Bone Fracture Incidence in Women Treated with MPA

15 REFERENCES

16 HOW SUPPLIED/STORAGE AND HANDLING

17 PATIENT COUNSELING INFORMATION

*
Sections or subsections omitted from the full prescribing information are not listed.

FULL PRESCRIBING INFORMATION

WARNING: LOSS OF BONE MINERAL DENSITY

Women who use Medroxyprogesterone Acetate (MPA) Injectable Suspension, USP may lose significant bone mineral density. Bone loss is greater with increasing duration of use and may not be completely reversible [see Warnings and Precautions (5.1)].
It is unknown if use of MPA Injectable Suspension, USP during adolescence or early adulthood, a critical period of bone accretion, will reduce peak bone mass and increase the risk for osteoporotic fracture in later life [see Warnings and Precautions (5.1)].
MPA Injectable Suspension, USP is not recommended as a long‑term (i.e., longer than 2 years) birth control method unless other options are considered inadequate [see Indications and Usage (1) and Warnings and Precautions (5.1)].

1 INDICATIONS AND USAGE

Medroxyprogesterone Acetate (MPA) Injectable Suspension, USP is indicated for use by females of reproductive potential to prevent pregnancy.

Limitations of Use:

The use of MPA Injectable Suspension, USP is not recommended as a long-term (i.e., longer than 2 years) birth control method unless other options are considered inadequate [see Dosage and Administration (2.1) and Warnings and Precautions (5.1)].

2 DOSAGE AND ADMINISTRATION

2.1 Prevention of Pregnancy

Both the 1 mL vial and the 1 mL prefilled syringe of MPA Injectable Suspension, USP should be vigorously shaken just before use to ensure that the dose being administered represents a uniform suspension.

The recommended dose is 150 mg of MPA Injectable Suspension, USP every 3 months (13 weeks) administered by deep intramuscular (IM) injection using strict aseptic technique in the gluteal or deltoid muscle, rotating the sites with every injection. As with any IM injection, to avoid an inadvertent subcutaneous injection, body habitus should be assessed prior to each injection to determine if a longer needle is necessary particularly for gluteal IM injection.

Use for longer than 2 years is not recommended (unless other birth control methods are considered inadequate) due to the impact of long-term MPA Injectable Suspension, USP treatment on bone mineral density (BMD) [see Warnings and Precautions (5.1)]. Dosage does not need to be adjusted for body weight [see Clinical Studies (14.1)].

To ensure the patient is not pregnant at the time of the first injection, the first injection should be given ONLY during the first 5 days of a normal menstrual period or within the first 5-days post-partum. In post-partum mothers who exclusively breastfeed, administer MPA Injectable Suspension, USP during or after the sixth post‑partum week. If the time interval between injections is greater than 13 weeks, the physician should determine that the patient is not pregnant before administering the drug. The efficacy of MPA Injectable Suspension, USP depends on adherence to the dosage schedule of administration.

2.2 Switching from Other Methods of Contraception

When switching from other contraceptive methods, MPA Injectable Suspension, USP should be given in a manner that ensures continuous contraceptive coverage based upon the mechanism of action of both methods, (e.g., patients switching from oral contraceptives should have their first injection of MPA Injectable Suspension, USP on the day after the last active tablet or at the latest, on the day following the final inactive tablet).

3 DOSAGE FORMS AND STRENGTHS

Sterile Aqueous suspension: 150 mg/mL

Prefilled syringes are available packaged with 22-gauge × 1 1/2 inch Terumo® SurGuard™ Needles.

4 CONTRAINDICATIONS

The use of MPA Injectable Suspension, USP is contraindicated in the following conditions:

Active thrombophlebitis, or current or history of thromboembolic disorders, or cerebral vascular disease [see Warnings and Precautions (5.2)].
Known or suspected malignancy of breast [see Warnings and Precautions (5.3)].
Known hypersensitivity to MPA Injectable Suspension, USP (medroxyprogesterone acetate) or any of its other ingredients [see Warnings and Precautions (5.5)].
Significant liver disease [see Warnings and Precautions (5.7)].
Undiagnosed vaginal bleeding [see Warnings and Precautions (5.10)].

5 WARNINGS AND PRECAUTIONS

5.1 Loss of Bone Mineral Density

Use of MPA Injectable Suspension, USP reduces serum estrogen levels and is associated with significant loss of bone mineral density (BMD). This loss of BMD is of particular concern during adolescence and early adulthood, a critical period of bone accretion. It is unknown if use of MPA Injectable Suspension, USP by younger women will reduce peak bone mass and increase the risk for osteoporotic fracture in later life.

A study to assess the reversibility of loss of BMD in adolescents was conducted with MPA Injectable Suspension, USP. After discontinuing MPA Injectable Suspension, USP in these adolescents, mean BMD loss at the total hip and femoral neck did not fully recover by 5 years (60 months) post-treatment in the sub-group of adolescents who were treated for more than 2 years [see Clinical Studies (14.3)]. Similarly, in adults, there was only partial recovery of mean BMD at the total hip, femoral neck, and lumbar spine towards baseline by 2 years post-treatment [see Clinical Studies (14.2)].

The use of MPA Injectable Suspension, USP is not recommended as a long-term (i.e., longer than 2 years) birth control method unless other options are considered inadequate. BMD should be evaluated when a woman needs to continue to use MPA Injectable Suspension, USP long-term. In adolescents, interpretation of BMD results should take into account patient age and skeletal maturity.

Other birth control methods should be considered in the risk/benefit analysis for the use of MPA Injectable Suspension, USP in women with osteoporosis risk factors. MPA Injectable Suspension, USP can pose an additional risk in patients with risk factors for osteoporosis (e.g., metabolic bone disease, chronic alcohol and/or tobacco use, anorexia nervosa, strong family history of osteoporosis or chronic use of drugs that can reduce bone mass such as anticonvulsants or corticosteroids).

5.2 Thromboembolic Disorders

There have been reports of serious thrombotic events in women using MPA Injectable Suspension, USP. However, MPA Injectable Suspension, USP has not been causally associated with the induction of thrombotic or thromboembolic disorders. Any patient who develops thrombosis while undergoing therapy with MPA Injectable Suspension, USP should discontinue treatment unless she has no other acceptable options for birth control.

Do not re-administer MPA Injectable Suspension, USP pending examination if there is a sudden partial or complete loss of vision or if there is a sudden onset of proptosis, diplopia, or migraine. Do not re-administer if examination reveals papilledema or retinal vascular lesions.

5.3 Cancer Risks

Breast Cancer

Women who have or have had a history of breast cancer should not use hormonal contraceptives, including MPA Injectable Suspension, USP, because breast cancer may be hormonally sensitive [see Contraindications (4)]. Women with a strong family history of breast cancer should be monitored with particular care.

The results of five large case-control studies assessing the association between depo-medroxyprogesterone acetate (DMPA) use and the risk of breast cancer are summarized in Figure 1. Three of the studies suggest a slightly increased risk of breast cancer in the overall population of users; these increased risks were statistically significant in one study. One recent US study1 evaluated the recency and duration of use and found a statistically significantly increased risk of breast cancer in recent users (defined as last use within the past five years) who used DMPA for 12 months or longer; this is consistent with results of a previous study2.

Figure 1. Risk estimates for breast cancer in DMPA users

Figure 1

Odds ratio estimates were adjusted for the following covariates:
Lee et al. (1987): age, parity, and socioeconomic status.
Paul et al. (1989): age, parity, ethnic group, and year of interview.
WHO (1991): age, center, and age at first live birth.
Shapiro et al. (2000): age, ethnic group, socioeconomic status, and any combined estrogen/progestogen oral contraceptive use.
Li et al. (2012): age, year, BMI, duration of OC use, number of full-term pregnancies, family history of breast cancer, and history of screening mammography.

Based on the published SEER-18 2011 incidence rate (age-adjusted to the 2000 US Standard Population) of breast cancer for US women, all races, age 20 to 49 years, a doubling of risk would increase the incidence of breast cancer in women who use MPA Injectable Suspension, USP from about 72 to about 144 cases per 100,000 women.

Cervical Cancer

A statistically non-significant increase in relative risk (RR) estimates of invasive squamous-cell cervical cancer has been associated with the use of MPA Injectable Suspension, USP in women who were first exposed before the age of 35 years (RR 1.22 to 1.28 and 95% CI 0.93 to 1.70). The overall, non-significant RR of invasive squamous-cell cervical cancer in women who ever used MPA Injectable Suspension, USP was estimated to be 1.11 (95% CI 0.96 to 1.29). No trends in risk with duration of use or times since initial or most recent exposure were observed.

Other Cancers

Long-term case-controlled surveillance of users of MPA Injectable Suspension, USP found no overall increased risk of ovarian or liver cancer.

5.4 Ectopic Pregnancy

Be alert to the possibility of an ectopic pregnancy among women using MPA Injectable Suspension, USP who become pregnant or complain of severe abdominal pain.

5.5 Anaphylaxis and Anaphylactoid Reaction

Anaphylaxis and anaphylactoid reaction have been reported with the use of MPA Injectable Suspension, USP. Institute emergency medical treatment if an anaphylactic reaction occurs.

5.6 Injection Site Reactions

Injection site reactions have been reported with use of MPA Injectable Suspension, USP [see Adverse Reactions (6.2)]. Persistent injection site reactions may occur after administration of MPA Injectable Suspension, USP due to inadvertent subcutaneous administration or release of the drug into the subcutaneous space while removing the needle [see Dosage and Administration (2.1)].

5.7 Liver Function

Discontinue MPA Injectable Suspension, USP use if jaundice or acute or chronic disturbances of liver function develop. Do not resume use until markers of liver function return to normal and MPA Injectable Suspension, USP causation has been excluded.

5.8 Convulsions

There have been a few reported cases of convulsions in patients who were treated with MPA Injectable Suspension, USP. Association with drug use or pre-existing conditions is not clear.

5.9 Depression

Monitor patients who have a history of depression and do not re-administer MPA Injectable Suspension, USP if depression recurs.

5.10 Bleeding Irregularities

Most women using MPA Injectable Suspension, USP experience disruption of menstrual bleeding patterns. Altered menstrual bleeding patterns include amenorrhea, irregular or unpredictable bleeding or spotting, prolonged spotting or bleeding, and heavy bleeding. Rule out the possibility of organic pathology if abnormal bleeding persists or is severe, and institute appropriate treatment.

As women continue using MPA Injectable Suspension, USP, fewer experience irregular bleeding and more experience amenorrhea. In clinical studies of MPA Injectable Suspension, USP, by month 12 amenorrhea was reported by 55% of women, and by month 24, amenorrhea was reported by 68% of women using MPA Injectable Suspension, USP.

5.11 Weight Gain

Women tend to gain weight while on therapy with MPA Injectable Suspension, USP. From an initial average body weight of 136 lb, women who completed 1 year of therapy with MPA Injectable Suspension, USP gained an average of 5.4 lb. Women who completed 2 years of therapy gained an average of 8.1 lb. Women who completed 4 years gained an average of 13.8 lb. Women who completed 6 years gained an average of 16.5 lb. Two percent of women withdrew from a large-scale clinical trial because of excessive weight gain.

5.12 Carbohydrate Metabolism

A decrease in glucose tolerance has been observed in some patients on MPA Injectable Suspension, USP treatment. Monitor diabetic patients carefully while receiving MPA Injectable Suspension, USP.

5.13 Fluid Retention

Because progestational drugs including MPA Injectable Suspension, USP may cause some degree of fluid retention, monitor patients with conditions that might be influenced by this condition, such as epilepsy, migraine, asthma, and cardiac or renal dysfunction.

5.14 Return of Fertility

Return to ovulation and fertility is likely to be delayed after stopping MPA Injectable Suspension, USP. In a large US study of women who discontinued use of MPA Injectable Suspension, USP to become pregnant, data are available for 61% of them. Of the 188 women who discontinued the study to become pregnant, 114 became pregnant. Based on Life-Table analysis of these data, it is expected that 68% of women who do become pregnant may conceive within 12 months, 83% may conceive within 15 months, and 93% may conceive within 18 months from the last injection. The median time to conception for those who do conceive is 10 months following the last injection with a range of 4 to 31 months, and is unrelated to the duration of use. No data are available for 39% of the patients who discontinued MPA Injectable Suspension, USP to become pregnant and who were lost to follow-up or changed their mind.

5.15 Sexually Transmitted Infections

Patients should be counseled that MPA Injectable Suspension, USP does not protect against HIV infection (AIDS) and other sexually transmitted infections.

5.16 Monitoring

A woman who is taking hormonal contraceptive should have a yearly visit with her healthcare professional for a blood pressure check and for other indicated healthcare.

5.17 Interference with Laboratory Tests

The use of MPA Injectable Suspension, USP may change the results of some laboratory tests, such as coagulation factors, lipids, glucose tolerance, and binding proteins [see Drug Interactions (7.2)]

6 ADVERSE REACTIONS

The following important adverse reactions observed with the use of MPA Injectable Suspension, USP are discussed in greater detail in the Warnings and Precautions section (5):

Loss of Bone Mineral Density [see Warnings and Precautions (5.1)]
Thromboembolic disease [see Warnings and Precautions (5.2)]
Breast Cancer [see Warnings and Precautions (5.3)]
Anaphylaxis and Anaphylactoid Reactions [see Warnings and Precautions (5.5)]
Bleeding Irregularities [see Warnings and Precautions (5.10)]
Weight Gain [see Warnings and Precautions (5.11)]

6.1 Clinical Trials Experience

Clinical trials are conducted under widely varying conditions, therefore, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

In the two clinical trials with MPA Injectable Suspension, USP, over 3,900 women, who were treated for up to 7 years, reported the following adverse reactions, which may or may not be related to the use of MPA Injectable Suspension, USP. The population studied ranges in age from 15 to 51 years, of which 46% were White, 50% Non-White, and 4.9% Unknown race. The patients received 150 mg MPA Injectable Suspension, USP every 3‑months (90 days). The median study duration was 13 months with a range of 1–84 months. Fifty‑eight percent of patients remained in the study after 13 months and 34% after 24 months.

Table 1. Adverse Reactions that Were Reported by More than 5% of Subjects
Body System*Adverse Reactions [Incidence (%)]
*
Body System represented from COSTART medical dictionary.

Body as a Whole

Headache (16.5%)

Abdominal pain/discomfort (11.2%)

Metabolic/Nutritional

Increased weight >10lb at 24 months (37.7%)

Nervous

Nervousness (10.8%)

Dizziness (5.6%)

Libido decreased (5.5%)

Reproductive (Urogenital1)

Menstrual irregularities:
bleeding (57.3% at 12 months, 32.1% at 24 months) amenorrhea (55% at 12 months, 68% at 24 months)

Table 2. Adverse Reactions that Were Reported by between 1 and 5% of Subjects
Body System*Adverse Reactions [Incidence (%)]
*
Body System represented from COSTART medical dictionary.

Body as a Whole

Asthenia/fatigue (4.2%)

Backache (2.2%)

Dysmenorrhea (1.7%)

Hot flashes (1.0%)

Digestive

Nausea (3.3%)

Bloating (2.3%)

Metabolic/Nutritional

Edema (2.2%)

Musculoskeletal

Leg cramps (3.7%)

Arthralgia (1.0%)

Nervous

Depression (1.5%)

Insomnia (1.0%)

Skin and Appendages

Acne (1.2%)

No hair growth/alopecia (1.1%)

Rash (1.1%)

Reproductive (Urogenital1)

Leukorrhea (2.9%)

Breast pain (2.8%)

Vaginitis (1.2%)

Adverse reactions leading to study discontinuation in ≥2% of subjects: bleeding (8.2%), amenorrhea (2.1%), weight gain (2.0%).

6.2 Post-Marketing Experience

The following adverse reactions have been identified during post approval use of MPA Injectable Suspension, USP. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

There have been cases of osteoporosis including osteoporotic fractures reported post-marketing in patients taking MPA Injectable Suspension, USP.

Table 3. Adverse Reactions Reported during Post-Marketing Experience
Body System*Adverse Reactions
*
Body System represented from COSTART medical dictionary.
Injection site abscess and injection site infections have been reported; therefore, strict aseptic injection technique should be followed when administering MPA Injectable Suspension, USP in order to avoid injection site infections [see Dosage and Administration (2.1)].

Body as a Whole

Chest pain, Allergic reactions including angioedema, Fever, Injection site abscess, Injection site infection, Injection site nodule/lump, Injection site pain/tenderness, Injection site persistent atrophy/indentation/dimpling, Injection-site reaction, Lipodystrophy acquired, Chills, Axillary swelling

Cardiovascular

Syncope, Tachycardia, Thrombophlebitis, Deep vein thrombosis, Pulmonary embolus, Varicose veins

Digestive

Changes in appetite, Gastrointestinal disturbances, Jaundice, Excessive thirst, Rectal bleeding

Hematologic and Lymphatic

Anemia, Blood dyscrasia

Musculoskeletal

Osteoporosis

Neoplasms

Cervical cancer, Breast cancer

Nervous

Paralysis, Facial palsy, Paresthesia, Drowsiness

Respiratory

Dyspnea and asthma, Hoarseness

Skin and Appendages

Hirsutism, Excessive sweating and body odor, Dry skin, Scleroderma, Melasma, Chloasma

Reproductive (Urogenital1)

Lack of return to fertility, Unexpected pregnancy, Changes in breast size, Breast lumps or nipple bleeding, Galactorrhea, Increased libido, Uterine hyperplasia, Vaginal cysts, Genitourinary infections, Dyspareunia

7 DRUG INTERACTIONS

7.1 Changes in Contraceptive Effectiveness Associated with CoAdministration of Other Products

If a woman on hormonal contraceptives takes a drug or herbal product that induces enzymes, including CYP3A4, that metabolize contraceptive hormones, counsel her to use additional contraception or a different method of contraception. Drugs or herbal products that induce such enzymes may decrease the plasma concentrations of contraceptive hormones, and may decrease the effectiveness of hormonal contraceptives. Some drugs or herbal products that may decrease the effectiveness of hormonal contraceptives include:

barbiturates
bosentan
carbamazepine
felbamate
griseofulvin
oxcarbazepine
phenytoin
rifampin
St. John's wort
topiramate

HIV protease inhibitors and non-nucleoside reverse transcriptase inhibitors: Significant changes (increase or decrease) in the plasma levels of progestin have been noted in some cases of co-administration of HIV protease inhibitors. Significant changes (increase or decrease) in the plasma levels of the progestin have been noted in some cases of co-administration with non-nucleoside reverse transcriptase inhibitors.

Antibiotics: There have been reports of pregnancy while taking hormonal contraceptives and antibiotics, but clinical pharmacokinetic studies have not shown consistent effects of antibiotics on plasma concentrations of synthetic steroids.

Consult the labeling of all concurrently-used drugs to obtain further information about interactions with hormonal contraceptives or the potential for enzyme alterations.

7.2 Laboratory Test Interactions

The pathologist should be advised of progestin therapy when relevant specimens are submitted.

The following laboratory tests may be affected by progestins including MPA Injectable Suspension, USP:

(a)
Plasma and urinary steroid levels are decreased (e.g., progesterone, estradiol, pregnanediol, testosterone, cortisol).
(b)
Gonadotropin levels are decreased.
(c)
Sex-hormone-binding-globulin concentrations are decreased.
(d)
Protein-bound iodine and butanol extractable protein-bound iodine may increase. T3-uptake values may decrease.
(e)
Coagulation test values for prothrombin (Factor II), and Factors VII, VIII, IX, and X may increase.
(f)
Sulfobromophthalein and other liver function test values may be increased.
(g)
The effects of medroxyprogesterone acetate on lipid metabolism are inconsistent. Both increases and decreases in total cholesterol, triglycerides, low-density lipoprotein (LDL) cholesterol, and high-density lipoprotein (HDL) cholesterol have been observed in studies.

8 USE IN SPECIFIC POPULATIONS

8.1 Pregnancy

Risk Summary

There is no use for contraception in pregnancy; therefore, MPA Injectable Suspension, USP should be discontinued during pregnancy.

Epidemiologic studies and meta-analyses have not found an increased risk of genital or non-genital birth defects (including cardiac anomalies and limb-reduction defects) following exposure to progestins before conception or during early pregnancy.

All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.

8.2 Lactation

Risk Summary

Although medroxyprogesterone acetate is detectable in the milk of mothers receiving MPA Injectable Suspension, USP, milk composition, quality, and amount do not appear to be adversely affected. Effects on milk production and lactation initiation/duration remain unclear when administered before 6 weeks after delivery, therefore, in mothers who exclusively breastfeed, initiate MPA Injectable Suspension, USP during or after the sixth post-partum week [see Dosage and Administration (2.1)].

No adverse effects in breastfed infants would be expected with maternal use of progestins. Neonates and infants exposed to medroxyprogesterone acetate from breast milk have been studied and no adverse effects have been noted.

The developmental and health benefits of breast-feeding should be considered along with the mother’s clinical need for MPA Injectable Suspension, USP and any potential adverse effects on the breastfed child from MPA Injectable Suspension, USP or from the underlying maternal condition.

8.3 Females and Males of Reproductive Potential

MPA Injectable Suspension, USP is indicated for the prevention of pregnancy and would therefore be expected to impair female fertility until cessation of treatment. Women may experience a delay in return to ovulation and fertility (conception) following discontinuation of MPA Injectable Suspension, USP [see Warnings and Precautions (5.14)].

8.4 Pediatric Use

MPA Injectable Suspension, USP is not indicated before menarche. Use of MPA Injectable Suspension, USP is associated with significant loss of BMD. This loss of BMD is of particular concern during adolescence and early adulthood, a critical period of bone accretion. In adolescents, interpretation of BMD results should take into account patient age and skeletal maturity. It is unknown if use of MPA Injectable Suspension, USP by younger women will reduce peak bone mass and increase the risk of osteoporotic fractures in later life. Other than concerns about loss of BMD, the safety and effectiveness are expected to be the same for postmenarchal adolescents and adult women.

8.5 Geriatric Use

This product has not been studied in post-menopausal women and is not indicated in this population.

11 DESCRIPTION

MPA Injectable Suspension, USP contains medroxyprogesterone acetate (MPA), a derivative of progesterone, as its active ingredient. MPA is active by the parenteral and oral routes of administration. It is a white to off-white; odorless crystalline powder that is stable in air and that melts between 200°C and 210°C. It is freely soluble in chloroform, soluble in acetone and dioxane, sparingly soluble in alcohol and methanol, slightly soluble in ether, and insoluble in water.

The chemical name for MPA is pregn-4-ene-3, 20-dione, 17-(acetyloxy)-6-methyl-, (6α-).

The structural formula is as follows:

Chemical Structure

MPA Injectable Suspension, USP for IM injection is available in vials and prefilled syringes, each containing 1 mL of MPA sterile aqueous suspension 150 mg/mL.

For MPA Injectable Suspension, USP vials, each mL of sterile aqueous suspension contains:

Medroxyprogesterone acetate

150 mg

Polyethylene glycol 3350

28.9 mg

Polysorbate 80

2.41 mg

Sodium chloride

8.68 mg

Methylparaben

1.37 mg

Propylparaben

0.150 mg

Water for injection

quantity sufficient

When necessary, pH is adjusted with sodium hydroxide or hydrochloric acid, or both.

For MPA Injectable Suspension, USP prefilled syringes, each mL of sterile aqueous suspension contains:

Medroxyprogesterone acetate

150 mg

Polyethylene glycol 3350

28.5 mg

Polysorbate 80

2.37 mg

Sodium chloride

8.56 mg

Methylparaben

1.35 mg

Propylparaben

0.147 mg

Water for injection

quantity sufficient

When necessary, pH is adjusted with sodium hydroxide or hydrochloric acid, or both.

12 CLINICAL PHARMACOLOGY

12.1 Mechanism of Action

MPA Injectable Suspension, USP inhibits the secretion of gonadotropins which primarily prevents follicular maturation and ovulation and causes thickening of cervical mucus. These actions contribute to its contraceptive effect.

12.2 Pharmacodynamics

No specific pharmacodynamic studies were conducted with MPA Injectable Suspension, USP.

12.3 Pharmacokinetics

Absorption

Following a single 150 mg IM dose of MPA Injectable Suspension, USP in eight women between the ages of 28 and 36 years old, MPA concentrations, measured by an extracted radioimmunoassay procedure, increase for approximately 3 weeks to reach peak plasma concentrations of 1 to 7 ng/mL.

Distribution

Plasma protein binding of MPA averages 86%. MPA binding occurs primarily to serum albumin. No binding of MPA occurs with sex-hormone-binding globulin (SHBG).

Elimination

Metabolism

MPA is extensively metabolized in the liver by P450 enzymes. Its metabolism primarily involves ring A and/or side-chain reduction, loss of the acetyl group, hydroxylation in the 2-, 6-, and 21-positions or a combination of these positions, resulting in more than 10 metabolites.

Excretion

The concentrations of medroxyprogesterone acetate decrease exponentially until they become undetectable (<100 pg/mL) between 120 to 200 days following injection. Using an unextracted radioimmunoassay procedure for the assay of medroxyprogesterone acetate in serum, the apparent half-life for medroxyprogesterone acetate following IM administration of MPA Injectable Suspension, USP is approximately 50 days. Most MPA metabolites are excreted in the urine as glucuronide conjugates with only minor amounts excreted as sulfates.

Specific Populations

The effect of hepatic and/or renal impairment on the pharmacokinetics of MPA Injectable Suspension, USP is unknown.

13 NONCLINICAL TOXICOLOGY

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility

[see Warnings and Precautions (5.3, 5.14) and Use in Specific Populations (8.3)].

14 CLINICAL STUDIES

14.1 Contraception

In five clinical studies using MPA Injectable Suspension, USP, the 12-month failure rate for the group of women treated with MPA Injectable Suspension, USP was zero (no pregnancies reported) to 0.7 by Life-Table method. The effectiveness of MPA Injectable Suspension, USP is dependent on the patient returning every 3 months (13 weeks) for reinjection.

14.2 Bone Mineral Density Changes in Women Treated with MPA

In a controlled, clinical study, adult women using MPA Injectable Suspension, USP (150 mg) for up to 5 years showed spine and hip bone mineral density (BMD) mean decreases of 5–6%, compared to no significant change in BMD in the control group. The decline in BMD was more pronounced during the first two years of use, with smaller declines in subsequent years. Mean changes in lumbar spine BMD of ‑2.86%, ‑4.11%, ‑4.89%, ‑4.93% and ‑5.38% after 1, 2, 3, 4, and 5 years, respectively, were observed. Mean decreases in BMD of the total hip and femoral neck were similar.

After stopping use of MPA Injectable Suspension, USP, there was partial recovery of BMD toward baseline values during the 2-year post-therapy period. Longer duration of treatment was associated with less complete recovery during this 2-year period following the last injection. Table 4 shows the change in BMD in women after 5 years of treatment with MPA Injectable Suspension, USP and in women in a control group, as well as the extent of recovery of BMD for the subset of the women for whom 2-year post treatment data were available.

Table 4. Mean Percent Change from Baseline in BMD in Adults by Skeletal Site and Cohort (5 Years of Treatment and 2 Years of Follow-Up)
Time in StudySpineTotal HipFemoral Neck
Medroxy-progesterone Acetate*ControlMedroxy-progesterone Acetate*ControlMedroxy-progesterone Acetate*Control
*
The treatment group consisted of women who received MPA Injectable Suspension, USP for 5 years and were then followed for 2 years post-use (total time in study of 7 years).
The control group consisted of women who did not use hormonal contraception and were followed for 7 years.

5 years

-5.38%
n=33

0.43%
n=105

-5.16%
n=21

0.19%
n=65

-6.12%
n=34

-0.27%
n=106

7 years

-3.13%
n=12

0.53%
n=60

-1.34%
n=7

0.94%
n=39

-5.38%
n=13

-0.11%
n=63

14.3 Bone Mineral Density Changes in Adolescent Females (12 to 18 Years of Age) Treated with MPA

The impact of MPA Injectable Suspension, USP (150 mg) use for up to 240 weeks (4.6 years) was evaluated in an open-label non-randomized clinical study in 389 adolescent females (12 to 18 years of age). Use of MPA Injectable Suspension, USP was associated with a significant decline from baseline in BMD.

Partway through the trial, drug administration was stopped (at 120 weeks). The mean number of injections per MPA Injectable Suspension, USP user was 9.3. Table 5 summarizes the study findings. The decline in BMD at total hip and femoral neck was greater with longer duration of use. The mean decrease in BMD at 240 weeks was more pronounced at total hip (-6.4%) and femoral neck (-5.4%) compared to lumbar spine (-2.1%).

Adolescents in the untreated cohort had an increase in BMD during the period of growth following menarche. However, the two cohorts were not matched at baseline for age, gynecologic age, race, BMD and other factors that influence the rate of acquisition of BMD.

Table 5. BMD Mean Percent Change from Baseline in Adolescents Receiving ≥4 Injections per 60-week Period, by Skeletal Site and Cohort
Duration of TreatmentMPA Injectable Suspension, USP
(150 mg IM)
Unmatched, Untreated Cohort
NMean % ChangeNMean % Change

Total Hip BMD

Week 60 (1.2 years)

113

-2.75

166

1.22

Week 120 (2.3 years)

73

-5.40

109

2.19

Week 240 (4.6 years)

28

-6.40

84

1.71

Femoral Neck BMD

 Week 60

113

-2.96

166

1.75

 Week 120

73

-5.30

108

2.83

 Week 240

28

-5.40

84

1.94

Lumbar Spine BMD

 Week 60

114

-2.47

167

3.39

 Week 120

73

-2.74

109

5.28

 Week 240

27

-2.11

84

6.40

BMD Recovery Post-Treatment in Adolescents

Longer duration of treatment and smoking were associated with less recovery of BMD following the last injection of MPA Injectable Suspension, USP. Table 6 shows the extent of recovery of BMD up to 60 months post-treatment for adolescents who received MPA Injectable Suspension, USP for two years or less compared to more than two years. Post-treatment follow-up showed that, in women treated for more than two years, only lumbar spine BMD recovered to baseline levels after treatment was discontinued. Adolescents treated with MPA Injectable Suspension, USP for more than two years did not recover to their baseline BMD level at femoral neck and total hip even up to 60 months post-treatment. Adolescents in the untreated cohort gained BMD throughout the trial period (data not shown) [see Warnings and Precautions (5.1)].

Table 6. BMD Recovery (Months Post-Treatment) in Adolescents by Years of MPA Injectable Suspension, USP Use (2 Years or Less vs. More than 2 Years)
Duration of Treatment2 years or lessMore than 2 years
NMean % Change from baselineNMean % Change from baseline

Total Hip BMD

End of Treatment

49

-1.5%

49

-6.2%

12 M post-treatment

33

-1.4%

24

-4.6%

24 M post-treatment

18

0.3%

17

-3.6%

36 M post-treatment

12

2.1%

11

-4.6%

48 M post-treatment

10

1.3%

9

-2.5%

60 M post-treatment

3

0.2%

2

-1.0%

Femoral Neck BMD

End of Treatment

49

-1.6%

49

-5.8%

12 M post-treatment

33

-1.4%

24

-4.3%

24 M post-treatment

18

0.5%

17

-3.8%

36 M post-treatment

12

1.2%

11

-3.8%

48 M post-treatment

10

2.0%

9

-1.7%

60 M post-treatment

3

1.0%

2

-1.9%

Lumbar Spine BMD

End of Treatment

49

-0.9%

49

-3.5%

12 M post-treatment

33

0.4%

23

-1.1%

24 M post-treatment

18

2.6%

17

1.9%

36 M post-treatment

12

2.4%

11

0.6%

48 M post-treatment

10

6.5%

9

3.5%

60 M post-treatment

3

6.2%

2

5.7%

14.4 Bone Fracture Incidence in Women Treated with MPA

A retrospective cohort study to assess the association between MPA Injectable Suspension, USP and the incidence of bone fractures was conducted in 312,395 female contraceptive users in the UK. The incidence rates of fracture were compared between MPA Injectable Suspension, USP users and contraceptive users who had no recorded use of MPA Injectable Suspension, USP. The Incident Rate Ratio (IRR) for any fracture during the follow-up period (mean=5.5 years) was 1.41 (95% CI 1.35, 1.47). It is not known if this is due to MPA Injectable Suspension, USP use or to other related lifestyle factors that have a bearing on fracture rate.

In the study, when cumulative exposure to MPA Injectable Suspension, USP was calculated, the fracture rate in users who received fewer than 8 injections was higher than that in women who received 8 or more injections. However, it is not clear that cumulative exposure, which may include periods of intermittent use separated by periods of non-use, is a useful measure of risk, as compared to exposure measures based on continuous use.

There were very few osteoporotic fractures (fracture sites known to be related to low BMD) in the study overall, and the incidence of osteoporotic fractures was not found to be higher in MPA Injectable Suspension, USP users compared to non-users.

Importantly, this study could not determine whether use of MPA Injectable Suspension, USP has an effect on fracture rate later in life.

15 REFERENCES

1.
Li CI, Beaber EF, Tang, MCT et al. Effect of Depo-Medroxyprogesterone Acetate on Breast Cancer Risk among Women 20 to 44 years of Age. Cancer Research 2012; 72:2028–2035.
2.
Paul C, Skegg DCG, Spears GFS. Depot medroxyprogesterone (Depo-Provera) and risk of breast cancer. Br Med J 1989; 299:759–62.

16 HOW SUPPLIED/STORAGE AND HANDLING

Medroxyprogesterone Acetate Injectable Suspension, USP (Medroxyprogesterone Acetate sterile aqueous suspension 150 mg/mL) is supplied in the following strengths and package configurations:

Package ConfigurationStrengthNDC

MEDROXYPROGESTERONE ACETATE INJECTABLE SUSPENSION, USP (Medroxyprogesterone Acetate sterile aqueous suspension 150 mg/mL)

1 mL vial

150 mg/mL

NDC 59762-4537-1

25 × 1 mL vials

150 mg/mL

NDC 59762-4537-2

MEDROXYPROGESTERONE ACETATE INJECTABLE SUSPENSION, USP prefilled syringes packaged with 22 gauge × 1 1/2 inch Terumo® SurGuard™ Needles

1 mL prefilled syringe

150 mg/mL

NDC 59762-4538-2

Vials MUST be stored upright at controlled room temperature 20° to 25°C (68° to 77°F) [see USP].

17 PATIENT COUNSELING INFORMATION

Advise the patient to read the FDA‑approved patient labeling (Patient Information).

Advise patients at the beginning of treatment that their menstrual cycle may be disrupted and that irregular and unpredictable bleeding or spotting results, and that this usually decreases to the point of amenorrhea as treatment with MPA Injectable Suspension, USP continues, without other therapy being required.
Counsel patients about the possible increased risk of breast cancer in women who use MPA Injectable Suspension, USP [see Warnings and Precautions (5.3)].
Counsel patients that this product does not protect against HIV infection (AIDS) and other sexually transmitted infections.
Counsel patients on Warnings and Precautions associated with use of MPA Injectable Suspension, USP.
Counsel patients to use a back-up method or alternative method of contraception when enzyme inducers are used with MPA Injectable Suspension, USP.

This product's labeling may have been updated. For the most recent prescribing information, please visit www.greenstonellc.com.

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LAB-0150-18.0

Patient Information

Medroxyprogesterone Acetate Injectable Suspension, USP
Contraceptive Injection

Read this Patient Information carefully before you decide if Medroxyprogesterone Acetate (MPA) Injectable Suspension, USP is right for you. This information does not take the place of talking with your gynecologist or other healthcare professional who specializes in women's health. If you have any questions about MPA Injectable Suspension, USP, ask your healthcare professional. You should also learn about other birth control methods to choose the one that is best for you.

What is the most important information I should know about MPA Injectable Suspension, USP?

MPA Injectable Suspension, USP can cause serious side effects, including:

Use of MPA Injectable Suspension, USP may cause you to lose calcium stored in your bone and decrease your bone mass. The longer you use MPA Injectable Suspension, USP, the greater your loss of calcium from your bones. Your bones may not recover completely when you stop using MPA Injectable Suspension, USP.
If you use MPA Injectable Suspension, USP continuously for a long time (for more than 2 years), it may increase the risk of weak, porous bones (osteoporosis) that could increase the risk of broken bones, especially after menopause.
You should not use MPA Injectable Suspension, USP for more than two years unless you cannot use other birth control methods.
It is not known if your risk of developing osteoporosis is greater if you are a teenager or young adult when you start to use MPA Injectable Suspension, USP. (see "What are the possible side effects of MPA Injectable Suspension, USP?").

MPA Injectable Suspension, USP is intended to prevent pregnancy. MPA Injectable Suspension, USP does not protect against HIV infection (AIDS) and other sexually transmitted Infections (STIs).

What is MPA Injectable Suspension, USP?

MPA Injectable Suspension, USP is a progestin hormone birth control method that is given by injection (a shot) to prevent pregnancy.

How well does MPA Injectable Suspension, USP work?

Your chance of getting pregnant depends on how well you follow the directions for taking your MPA Injectable Suspension, USP. The more carefully you follow the directions (such as returning every 3 months for your next injection), the less chance you have of getting pregnant.

In clinical studies, about 1 out of 100 women got pregnant during the first year that they used MPA Injectable Suspension, USP.

The following chart shows the chance of getting pregnant for women who use different methods of birth control. Each box on the chart contains a list of birth control methods that are similar in effectiveness. The most effective methods are at the top of the chart. The box on the bottom of the chart shows the chance of getting pregnant for women who do not use birth control and are trying to get pregnant.

Figure

How should I take MPA Injectable Suspension, USP?

MPA Injectable Suspension, USP is given by your healthcare professional as a shot into your muscle (intramuscular injection). The shot is given in your buttock or upper arm 1 time every 3 months. At the end of the 3 months, you will need to return to your healthcare professional for your next injection in order to continue your protection against pregnancy.
To make sure that you are not pregnant before you take MPA Injectable Suspension, USP, the first injection should be given only:
o
during the first 5 days of a normal menstrual period, or
o
within the first 5 days after giving birth, if you are not breastfeeding, or
o
at the 6th week after giving birth, if you are feeding your baby only breastmilk.
MPA Injectable Suspension, USP may be given at other times than those listed above, but you will likely need to have a pregnancy test first to show that you are not pregnant.
During treatment with MPA Injectable Suspension, USP, you should see your healthcare professional every year for a blood pressure check and other healthcare needs.

Who Should Not Use MPA Injectable Suspension, USP?

Do not use MPA Injectable Suspension, USP if you:

have bleeding from your vagina that has not been explained
have breast cancer now or in the past, or think you have breast cancer
have had a stroke
ever had blood clots in your arms, legs or lungs
have problems with your liver or liver disease
are allergic to medroxyprogesterone acetate or any of the other ingredients in MPA Injectable Suspension, USP. See the end of this leaflet for a complete list of ingredients in MPA Injectable Suspension, USP.

What should I tell my healthcare professional before taking MPA Injectable Suspension, USP?

Before taking MPA Injectable Suspension, USP, tell your healthcare professional if you have:

risk factors for weak bones (osteoporosis) such as bone disease, use alcohol or smoke regularly, anorexia nervosa, or a strong family history of osteoporosis
irregular or lighter than usual menstrual periods
breast cancer now or in the past, or think you have breast cancer
a family history of breast cancer
an abnormal mammogram (breast X-ray), lumps in your breasts, or bleeding from your nipples
kidney problems
high blood pressure
had a stroke
had blood clots in your arms, legs or lungs
migraine headaches
asthma
epilepsy (convulsions or seizures)
diabetes
depression or a history of depression
any other medical conditions

If you are breastfeeding or plan to breastfeed, MPA Injectable Suspension, USP can pass into your breast milk. Talk to your healthcare professional about the best way to feed your baby if you take MPA Injectable Suspension, USP.

Tell your healthcare professional about all of the medicines you take, including prescription and nonprescription medicines, vitamins, and herbal supplements.

MPA Injectable Suspension, USP and certain other medicines may affect each other, causing serious side effects.

Sometimes the doses of other medicines may need to be changed while you are taking MPA Injectable Suspension, USP.

Some medicines may make MPA Injectable Suspension, USP less effective at preventing pregnancy, including those listed below.

Especially tell your healthcare professional if you take:

medicine to help you sleep
bosentan
medicine for seizures
griseofulvin
an antibiotic
medicine for HIV (AIDS)
St. John's wort

Know the medicines you take. Keep a list of your medicines with you to show your healthcare professional or pharmacist before you first start taking MPA Injectable Suspension, USP or when you get a new medicine.

Follow your healthcare professional’s instructions about using a back-up method of birth control if you are taking medicines that may make MPA Injectable Suspension, USP less effective.

What are the possible side effects of MPA Injectable Suspension, USP?

MPA Injectable Suspension, USP can cause serious side effects, including:

Effect on the bones: See "What is the most important information I should know about MPA Injectable Suspension, USP?".
Teenage years are the most important years to gain bone strength. The decrease in calcium in your bones is of most concern if you are a teenager or have the following problems:
bone disease
an eating disorder (anorexia nervosa)
a strong family history of osteoporosis
you take a drug that can lower the amount of calcium in your bones (drugs for epilepsy or steroid drugs)
you drink a lot of alcohol (more than 2 drinks a day)
you smoke
 
If you need a birth control method for more than 2 years, your healthcare professional may switch you to another birth control method instead of using MPA Injectable Suspension, USP. If you continue using MPA Injectable Suspension, USP, your healthcare professional may ask you to have a bone test, especially if you have other risks for weak bones.
 
When MPA Injectable Suspension, USP is stopped, your bones may start to regain calcium. However, in a study of teenage girls who used MPA Injectable Suspension, USP for more than 2 years, their hip bones did not completely recover by 5 years after they stopped using MPA Injectable Suspension, USP. Taking calcium and Vitamin D and exercising daily may lessen the loss of calcium from your bones.
possible increased risk of breast cancer. Women who use MPA Injectable Suspension, USP may have a slightly increased risk of breast cancer compared to non-users.
blood clots in your arms, legs, lungs, and eyes
stroke
a pregnancy outside of your uterus (ectopic pregnancy). Ectopic pregnancy is a medical emergency that often requires surgery. Ectopic pregnancy can cause internal bleeding, infertility, and even death.
allergic reactions. Severe allergic reactions have been reported in some women using MPA Injectable Suspension, USP.
loss of vision or other eye problems
migraine headaches
depression
convulsions or seizures
liver problems

Call your healthcare professional right away if you have:

sharp chest pain, coughing up blood, or sudden shortness of breath (indicating a possible clot in the lung)
sudden severe headache or vomiting, dizziness or fainting, problems with your eyesight or speech, weakness, or numbness in an arm or leg (indicating a possible stroke)
severe pain or swelling in the calf (indicating a possible clot in the leg)
sudden blindness, partial or complete (indicating a possible clot in the blood vessels of the eye)
unusually heavy vaginal bleeding
severe pain or tenderness in the lower abdominal area
persistent pain, pus, or bleeding at the injection site
yellowing of the eyes or skin
hives
difficulty breathing
swelling of the face, mouth, tongue or neck

The most common side effects of MPA Injectable Suspension, USP include:

irregular vaginal bleeding, such as lighter or heavier menstrual bleeding, or continued spotting
weight gain. You may experience weight gain while you are using MPA Injectable Suspension, USP. About two-thirds of the women who used MPA Injectable Suspension, USP in the clinical trials reported a weight gain of about 5 pounds during the first year of use. You may continue to gain weight after the first year. Women who used MPA Injectable Suspension, USP for 2 years gained an average of 8 pounds over those 2 years.
abdominal pain
headache
weakness
tiredness
nervousness
dizziness

Tell your healthcare professional if you have any side effect that bothers you or does not go away.

These are not all the possible side effects of MPA Injectable Suspension, USP. For more information, ask your healthcare professional or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other information should I know before choosing MPA Injectable Suspension, USP?

Pregnancy. When you take MPA Injectable Suspension, USP every 3 months, your chance of getting pregnant is very low. You could miss a period or have a light period and not be pregnant. If you miss 1 or 2 periods and think you might be pregnant, see your healthcare professional as soon as possible. You should not use MPA Injectable Suspension, USP if you are pregnant. However, MPA Injectable Suspension, USP taken by accident during pregnancy does not seem to cause birth defects.
Nursing Mothers. Although MPA Injectable Suspension, USP can be passed to the nursing baby in the breast milk, no harmful effects on babies have been found. MPA Injectable Suspension, USP does not stop the breasts from producing milk, so it can be used by nursing mothers. However, to minimize the amount of MPA Injectable Suspension, USP that is passed to the baby in the first weeks after birth, you should wait until your baby is 6 weeks old before you start using MPA Injectable Suspension, USP for birth control.

How will MPA Injectable Suspension, USP change my periods?

Change in normal menstrual cycle. The side effect reported most frequently by women who use MPA Injectable Suspension, USP for birth controls is a change in their normal menstrual cycle. During the first year of using MPA Injectable Suspension, USP, you might have one or more of the following changes:
o
irregular or unpredictable bleeding or spotting
o
an increase or decrease in menstrual bleeding
o
no bleeding at all. In clinical studies of MPA Injectable Suspension, USP, 55% of women reported no menstrual bleeding (amenorrhea) after one year of use and 68% of women reported no menstrual bleeding after two years of use.
Missed period. During the time you are using MPA Injectable Suspension, USP for birth controls, you may skip a period, or your periods may stop completely. If you have been receiving your shot of MPA Injectable Suspension, USP regularly every 3 months, then you are probably not pregnant. However, if you think that you may be pregnant, see your healthcare professional.

Unusually heavy or continuous bleeding is not a usual effect of MPA Injectable Suspension, USP and if this happens you should see your healthcare professional right away.

With continued use of MPA Injectable Suspension, USP, bleeding usually decreases and many women stop having periods completely. When you stop using MPA Injectable Suspension, USP your menstrual period will usually, in time, return to its normal cycle.

What if I want to become pregnant?

Because MPA Injectable Suspension, USP is a long-acting birth control method, it takes some time after your last shot for its effect to wear off. Most women who try to get pregnant after using MPA Injectable Suspension, USP get pregnant within 18 months after their last shot. The length of time you use MPA Injectable Suspension, USP has no effect on how long it takes you to become pregnant after you stop using it.

General Information about MPA Injectable Suspension, USP

Medicines are sometimes prescribed for conditions that are not mentioned in patient information leaflets. This leaflet summarizes the most important information about MPA Injectable Suspension, USP. If you would like more information, talk with your healthcare professional. You can ask your healthcare professional for information about MPA Injectable Suspension, USP that is written for healthcare professionals.

What are the ingredients in MPA Injectable Suspension, USP?

Active ingredient: medroxyprogesterone acetate

Inactive ingredients: polyethylene glycol 3350, polysorbate 80, sodium chloride, methylparaben, propylparaben, and water for injection. When necessary, pH is adjusted with sodium hydroxide or hydrochloric acid, or both.

This Patient Information has been approved by the U.S. Food and Drug Administration.

This product's labeling may have been updated. For the most recent prescribing information, please visit www.greenstonellc.com.

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LAB-0152-15.0

Revised August 2024

PRINCIPAL DISPLAY PANEL - 1 mL Vial Label

NDC 59762-4537-1

GREENSTONE® BRAND

medroxyprogesterone
acetate injectable
suspension, USP

150 mg in 1 mL

Intramuscular Use Only

Principal Display Panel - 1 mL Vial Label

PRINCIPAL DISPLAY PANEL - 1 mL Vial Carton

NDC 59762-4537-1
One 1 mL Vial

GREENSTONE® BRAND

medroxy-
progesterone
acetate
injectable
suspension,
USP

150 mg/mL

Single-Dose Vial

For intramuscular
use only

Rx only

PRINCIPAL DISPLAY PANEL - 1 mL Vial Carton

PRINCIPAL DISPLAY PANEL - 25—1 mL Vial Carton

NDC 59762-4537-2
25—1 mL Single-Dose Vials
Contains 25 of NDC 59762-4537-1

GREENSTONE® BRAND

medroxyprogesterone acetate
injectable suspension, USP

150 mg/mL

For intramuscular use only

PRINCIPAL DISPLAY PANEL - 25—1 mL Vial Carton

PRINCIPAL DISPLAY PANEL - 1 mL Syringe Label

NDC 59762-4538-2
1 mL Single Use Syringe

medroxyprogesterone
acetate injectable
suspension, USP
150 mg per mL

Intramuscular Use Only
Shake vigorously before use

Distributed by:
Greenstone LLC
Peapack, NJ 07977

820 289 001
8Q2672

Principal Display Panel - 1 mL Syringe Label

PRINCIPAL DISPLAY PANEL - 1 ml Syringe Carton

NDC 59762-4538-2

GREENSTONE® BRAND

medroxyprogesterone acetate
injectable suspension, USP

150 mg per mL

1 ml Prefilled Syringe

Rx only

For Intramuscular Use Only
Single use Syringe

PRINCIPAL DISPLAY PANEL - 1 ml Syringe Carton
MEDROXYPROGESTERONE ACETATE 
medroxyprogesterone acetate injection, suspension
Product Information
Product TypeHUMAN PRESCRIPTION DRUGItem Code (Source)NDC:59762-4537
Route of AdministrationINTRAMUSCULAR
Active Ingredient/Active Moiety
Ingredient NameBasis of StrengthStrength
MEDROXYPROGESTERONE ACETATE (UNII: C2QI4IOI2G) (MEDROXYPROGESTERONE - UNII:HSU1C9YRES) MEDROXYPROGESTERONE ACETATE150 mg  in 1 mL
Inactive Ingredients
Ingredient NameStrength
POLYETHYLENE GLYCOL 3350 (UNII: G2M7P15E5P) 28.9 mg  in 1 mL
POLYSORBATE 80 (UNII: 6OZP39ZG8H) 2.41 mg  in 1 mL
SODIUM CHLORIDE (UNII: 451W47IQ8X) 8.68 mg  in 1 mL
METHYLPARABEN (UNII: A2I8C7HI9T) 1.37 mg  in 1 mL
PROPYLPARABEN (UNII: Z8IX2SC1OH) 0.15 mg  in 1 mL
WATER (UNII: 059QF0KO0R)  
SODIUM HYDROXIDE (UNII: 55X04QC32I)  
HYDROCHLORIC ACID (UNII: QTT17582CB)  
Packaging
#Item CodePackage DescriptionMarketing Start DateMarketing End Date
1NDC:59762-4537-11 in 1 CARTON10/29/199201/31/2023
11 mL in 1 VIAL; Type 0: Not a Combination Product
2NDC:59762-4537-225 in 1 CARTON10/29/199211/30/2021
21 mL in 1 VIAL; Type 0: Not a Combination Product
Marketing Information
Marketing CategoryApplication Number or Monograph CitationMarketing Start DateMarketing End Date
NDA authorized genericNDA02024610/29/199201/31/2023
MEDROXYPROGESTERONE ACETATE 
medroxyprogesterone acetate injection, suspension
Product Information
Product TypeHUMAN PRESCRIPTION DRUGItem Code (Source)NDC:59762-4538
Route of AdministrationINTRAMUSCULAR
Active Ingredient/Active Moiety
Ingredient NameBasis of StrengthStrength
MEDROXYPROGESTERONE ACETATE (UNII: C2QI4IOI2G) (MEDROXYPROGESTERONE - UNII:HSU1C9YRES) MEDROXYPROGESTERONE ACETATE150 mg  in 1 mL
Inactive Ingredients
Ingredient NameStrength
POLYETHYLENE GLYCOL 3350 (UNII: G2M7P15E5P) 28.9 mg  in 1 mL
POLYSORBATE 80 (UNII: 6OZP39ZG8H) 2.41 mg  in 1 mL
SODIUM CHLORIDE (UNII: 451W47IQ8X) 8.68 mg  in 1 mL
METHYLPARABEN (UNII: A2I8C7HI9T) 1.37 mg  in 1 mL
PROPYLPARABEN (UNII: Z8IX2SC1OH) 0.15 mg  in 1 mL
WATER (UNII: 059QF0KO0R)  
SODIUM HYDROXIDE (UNII: 55X04QC32I)  
HYDROCHLORIC ACID (UNII: QTT17582CB)  
Packaging
#Item CodePackage DescriptionMarketing Start DateMarketing End Date
1NDC:59762-4538-21 in 1 CARTON10/29/199209/30/2024
11 mL in 1 SYRINGE; Type 9: Other Type of Part 3 Combination Product (e.g., Drug/Device/Biological Product)
Marketing Information
Marketing CategoryApplication Number or Monograph CitationMarketing Start DateMarketing End Date
NDA authorized genericNDA02024610/29/199209/30/2024
Labeler - Greenstone LLC (825560733)
Establishment
NameAddressID/FEIBusiness Operations
Pfizer Manufacturing Belgium NV370156507ANALYSIS(59762-4537, 59762-4538) , MANUFACTURE(59762-4537, 59762-4538) , PACK(59762-4537, 59762-4538) , LABEL(59762-4537, 59762-4538)
Establishment
NameAddressID/FEIBusiness Operations
Pharmacia & Upjohn Company LLC618054084ANALYSIS(59762-4537, 59762-4538) , MANUFACTURE(59762-4537, 59762-4538) , API MANUFACTURE(59762-4537, 59762-4538) , PACK(59762-4537, 59762-4538) , LABEL(59762-4537, 59762-4538)

Revised: 8/2024
 
Greenstone LLC