GABAPENTIN- gabapentin capsule 
Cardinal Health




100 mg, 300 mg and 400 mg

Read the Medication Guide before you start taking gabapentin capsules and each time you get a refill. There may be new information. This information does not take the place of talking to your healthcare provider about your medical condition or treatment. 

What is the most important information I should know about Gabapentin Capsules? Do not stop taking Gabapentin Capsules without first talking to your healthcare provider.  

Stopping gabapentin capsules suddenly can cause serious problems.  

Gabapentin Capsules can cause serious side effects including: 

1.   Like other antiepileptic drugs, Gabapentin Capsules may cause suicidal thoughts or actions in a very small number of people, about 1 in 500.

Call a healthcare provider right away if you have any of these symptoms, especially if they are new, worse, or worry you:

thoughts about suicide or dying
attempts to commit suicide 
new or worse depression
new or worse anxiety
feeling agitated or restless
panic attacks 
trouble sleeping (insomnia) 
new or worse irritability
acting aggressive, being angry, or violent 
acting on dangerous impulses 
an extreme increase in activity and talking (mania) 
other unusual changes in behavior or mood 

How can I watch for early symptoms of suicidal thoughts and actions? 

Pay attention to any changes, especially sudden changes, in mood, behaviors, thoughts, or feelings.
Keep all follow-up visits with your healthcare provider as scheduled.

Call your healthcare provider between visits as needed, especially if you are worried about symptoms.

Do not stop taking Gabapentin Capsules without first talking to a healthcare provider. 

Stopping gabapentin capsules suddenly can cause serious problems. Stopping a seizure medicine suddenly in a patient who has epilepsy can cause seizures that will not stop (status epilepticus).

Suicidal thoughts or actions can be caused by things other than medicines. If you have suicidal thoughts or actions, your healthcare provider may check for other causes.   

2. Changes in behavior and thinking- Using gabapentin capsules in children 3 to 12 years of age can cause emotional changes, aggressive behavior, problems with concentration, restlessness, changes in school performance, and hyperactivity.  

What is Gabapentin Capsules?

Gabapentin capsules are a prescription medicine used to treat: 

Pain from damaged nerves (postherpetic pain) that follows healing of shingles (a painful rash that comes after a herpes zoster infection) in adults.
Partial seizures when taken together with other medicines in adults and children 3 years of age and older.

Who should not take Gabapentin Capsules?

Do not take gabapentin capsules if you are allergic to gabapentin or any of the other ingredients in gabapentin capsules. See the end of this Medication Guide for a complete list of ingredients in gabapentin capsules. 

What should I tell my healthcare provider before taking Gabapentin Capsules?

Before taking Gabapentin Capsules, tell your healthcare provider if you:

have or have had kidney problems or are on hemodialysis
have or have had depression, mood problems, or suicidal thoughts or behavior
are pregnant or plan to become pregnant. It is not known if gabapentin capsules can harm your unborn baby. Tell your healthcare provider right away if you become pregnant while taking gabapentin capsules. You and your healthcare provider will decide if you should take gabapentin capsules while you are pregnant.
If you become pregnant while taking gabapentin capsules, talk to your healthcare provider about registering with the North American Antiepileptic Drug (NAAED) Pregnancy Registry. The purpose of this registry is to collect information about the safety of antiepileptic drugs during pregnancy. You can enroll in this registry by calling 1-888-233-2334.
are breast-feeding or plan to breast-feed. Gabapentin capsules can pass into breast milk. You and your healthcare provider should decide how you will feed your baby while you take gabapentin capsules.

Tell your healthcare provider about all the medicines you take, including prescription and non-prescription medicines, vitamins, and herbal supplements.  

Taking gabapentin capsules with certain other medicines can cause side effects or affect how well they work. Do not start or stop other medicines without talking to your healthcare provider.

Know the medicines you take. Keep a list of them and show it to your healthcare provider and pharmacist when you get a new medicine.  

How should I take Gabapentin Capsules?

Take gabapentin capsules exactly as prescribed. Your healthcare provider will tell you how much gabapentin capsules to take.
Do not change your dose of gabapentin capsules without talking to your healthcare provider. If you break a tablet in half the unused half of the tablet should be taken at your next scheduled dose. Half capsules not used within several days of breaking should be thrown away. If taking capsules, always swallow them whole with plenty of water.
Gabapentin capsules can be taken with or without food. If you take an antacid containing aluminum and magnesium, such as Maalox®, Mylanta®, Gelusil®, Gaviscon®, or Di-Gel®, you should wait at least 2 hours before taking your next dose of gabapentin capsules.
If you take too much gabapentin capsules, call your healthcare provider or your local Poison Control Center right away.

What should I avoid while taking Gabapentin Capsules?

Do not drink alcohol or take other medicines that make you sleepy or dizzy while taking gabapentin capsules without first talking with your healthcare provider. Taking gabapentin capsules with alcohol or drugs that cause sleepiness or dizziness may make your sleepiness or dizziness worse.
Do not drive, operate heavy machinery, or do other dangerous activities until you know how gabapentin capsules affects you. Gabapentin capsules can slow your thinking and motor skills. 

What are the possible side effects of Gabapentin Capsules?

See “What is the most important information I should know about Gabapentin Capsules?”
The most common side effects of Gabapentin Capsules include:


lack of coordination
viral infection
feeling drowsy
feeling tired
jerky movements


difficulty with speaking
temporary loss of memory (amnesia)
difficulty with coordination
double vision
unusual eye movement

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

These are not all the possible side effects of gabapentin capsules. For more information, ask your healthcare provider or pharmacist. 

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

How should I store Gabapentin Capsules?

Store Gabapentin Capsules at 20° to 25°C (68° to 77°F); excursions permitted to 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature].

Keep Gabapentin Capsules and all medicines out of the reach of children. 

General information about the safe and effective use of Gabapentin Capsules

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use gabapentin capsules for a condition for which it was not prescribed. Do not give gabapentin capsulesto other people, even if they have the same symptoms that you have. It may harm them. 

This Medication Guide summarizes the most important information about gabapentin capsules. If you would like more information, talk with your healthcare provider. You can ask your healthcare provider or pharmacist for information about gabapentin capsules that was written for healthcare professionals.

For more information about gabapentin capsules, go to For medical inquiries or to report side effects regarding gabapentin capsules, please contact Apotex Corp., Drug Safety at 1-800-667-4708 or FDA at 1-800-FDA-1088.

What are the ingredients in Gabapentin Capsules?

Active ingredient: gabapentin

Inactive ingredients in the Capsules: copovidone, magnesium stearate, hypromellose, hydroxypropyl cellulose, polyethylene glycol and titanium dioxide.


100 mg, 300 mg and 400 mg


Manufactued by:

Apotex Inc.

Toronto, Ontario

Canada M9L 1T9

Manufactured for:

Apotex Corp.

Weston, Florida


Distributed by:


Livonia, MI 48150

Repackaged By:

Cardinal Health

Zanesville, OH 43701


Revised: January 2011


Revised: 1/2016
Cardinal Health