Stafac 50

Manufacturer
Phibro Animal Health
Effective date
2023-11-13
Label type
VFD TYPE A MEDICATED ARTICLE ANIMAL DRUG LABEL
Version
8
Source
full-release
Hydrated at
2026-06-01 02:42:28

Label at a glance#

ProductStafac 50
Active ingredientVIRGINIAMYCIN
Label structure5 sections

Dosage and administration

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 ...

Storage and handling

Feed Continuously as Sole Ration Store At Or Below 25 o C (77 o F), Excursions Permitted Up to 40 o C (104 o F) Close Container After Use Not for Human Use Restricted Drug (California) – Use Only As Directed

Label contents#

Full prescribing information#

Active Drug Ingredient

DESCRIPTION SECTION

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

(Contains 50 g virginiamycin activity per lb)

Ingredients:

SPL UNCLASSIFIED SECTION

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

carboxymethylcellulose, mineral oil

Caution:

WARNINGS SECTION

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

INDICATIONS & USAGE SECTION

(50 g virginiamycin activity per lb)

For use in swine and poultry feeds as specified below

Directions for Use

DOSAGE & ADMINISTRATION SECTION

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

STORAGE AND HANDLING SECTION

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

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

Stafac 50Stafac 50 LabelStafac 50 Label

DailyMed Package Descriptions#

Package NDC, Product, Description table
Package NDCProductDescriptionFormQuantityStrengthSPL version
66104-8815-0Stafac 5022.6 kg in 1 BAGPOWDER22.68

DailyMed Dashboard NDC Coverage#

NDC, Dashboard title, SPL version table
NDCDashboard titleSPL versionValidationDashboard ZIP
66104-8815STAFAC 50 (VIRGINIAMYCIN) POWDER [PHIBRO ANIMAL HEALTH]81 package rows20231114_631dd212-54eb-4e0b-adf7-57f18ad94d0d.zip

DailyMed Socrata Ingredients#

Ingredient, Type, UNII table
IngredientTypeUNIISPL versionUploaded
VIRGINIAMYCINACTIVE INGREDIENTC49WS9N75L4
VIRGINIAMYCINACTIVE MOIETYC49WS9N75L4
RICE BRANINACTIVE INGREDIENTR60QEP13IC4

Products#

Every source-derived product name is available through these pages.

DailyMed product names page 1 of 1 · 3 matching rows.

NDC Codes#

Product NDC, Package NDC table
Product NDCPackage NDC
66104-881566104-8815-0

Ingredients#

Every source-derived ingredient row is available through these pages.

DailyMed ingredient rows page 1 of 1 · 2 matching rows.

Name, UNII, Kind table
NameUNIIKind
VIRGINIAMYCINC49WS9N75LACTIB
RICE BRANR60QEP13ICIACT

Source Document#

Source XML · Source PDF

Reported adverse events (FAERS/openFDA)#

Adverse event summaries are temporarily unavailable. Other product information remains available.