STAFAC 50- virginiamycin powder 
Phibro Animal Health

----------

Stafac® 50
(virginiamycin)
TYPE A MEDICATED ARTICLE

Active Drug Ingredient

Virginiamycin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11%

(Contains 50 g virginiamycin activity per lb)

Ingredients:

Processed grain by-products, roughage products, calcium carbonate,

carboxymethylcellulose, mineral oil

Caution:

CAUTION: Federal law restricts medicated feed containing this veterinary feed directive drug to use by or on the order of a licensed veterinarian.

For further manufacture only.

Follow Directions on Back Panel

Stafac is registered trademark of Phibro Animal Health Corporation

Phibro Animal Health Corporation, Teaneck, NJ 07666

Net Weight 50 lb (22.6 kg)

Distributed by:

Phibro Animal Health Corporation

Teaneck, NJ 07666

Approved by FDA under NADA # 091-467

9910000

101-9107-10

(50 g virginiamycin activity per lb)

For use in swine and poultry feeds as specified below

Directions for Use

Mixing Directions—Swine

Stafac 50 Type A Medicated Article must be thoroughly mixed in the feed to assure even distribution. Determine the appropriate amount of Stafac 50 required from the table below. Dilute Stafac 50 with a portion of one of the feed ingredients (enough to make a quantity equal to 10 lb per ton) before final mixing.

Swine

Required level of virginiamycin activity per ton of Type C Medicated Feed (complete feed)

Required amount of Stafac 50 per ton of Type C Medicated Feed (complete feed)

Amount of virginiamycin activity provided to animal per lb of body weight per day

Treatment of swine dysentery in nonbreeding swine weighing over 120 lb

100 g for

2 weeks

2 lb

2.27 mg

Treatment and control of swine dysentery in swine weighing up to 120 lb

100 g for 2 weeks followed by 50 g

2 lb

1 lb

2.27 mg

1.14 mg

Aid in control of swine dysentery in swine weighing up to 120 lb

For use in animals or on premises with a history of swine dysentery but where symptoms have not yet occurred

25 g

8 oz

0.57 mg

CAUTION: Not for use in breeding swine over 120 lbs.

Mixing Directions—Poultry

Mix 1 lb of Stafac 50 with 9 lb of feed ingredients to make 10 lb of an intermediate mix to contain 5 g/lb virginiamycin. Add 1 lb of the intermediate feed premix for each 5 g of virginiamycin needed to medicate a ton of feed.

Poultry

Required level of virginiamycin activity per ton of Type C Medicated Feed (complete feed)

Required amount of Stafac 50 per ton of Type C Medicated Feed (complete feed)

For use in broiler chickens

Prevention of necrotic enteritis caused by Clostridium perfringens susceptible to virginiamycin

20 g

180 g

Not for Use in Laying Chickens

Storage and Handling

Feed Continuously as Sole Ration

Store At Or Below 25oC (77oF), Excursions Permitted Up to 40oC (104oF)

Close Container After Use

Not for Human Use

Restricted Drug (California) – Use Only As Directed

Stafac 50

Stafac 50Stafac 50 Label

STAFAC 50 
virginiamycin powder
Product Information
Product TypeVFD TYPE A MEDICATED ARTICLE ANIMAL DRUGItem Code (Source)NDC:66104-8815
Route of AdministrationORAL
Active Ingredient/Active Moiety
Ingredient NameBasis of StrengthStrength
VIRGINIAMYCIN (UNII: C49WS9N75L) (VIRGINIAMYCIN - UNII:C49WS9N75L) VIRGINIAMYCIN50 g  in 0.45 kg
Inactive Ingredients
Ingredient NameStrength
RICE BRAN (UNII: R60QEP13IC)  
Packaging
#Item CodePackage DescriptionMarketing Start DateMarketing End Date
1NDC:66104-8815-022.6 kg in 1 BAG
Marketing Information
Marketing CategoryApplication Number or Monograph CitationMarketing Start DateMarketing End Date
NADANADA09146703/24/2010
Labeler - Phibro Animal Health (006989008)
Registrant - Phibro Animal Health (006989008)

Revised: 11/2023
Document Id: 77b14e8c-9ec9-4722-acd2-441ae3b32f99
Set id: 631dd212-54eb-4e0b-adf7-57f18ad94d0d
Version: 8
Effective Time: 20231113
 
Phibro Animal Health