Skip to main content

Vet Pen 300 (Canada)

This treatment applies to the following species:
Company: Rafter 8

Benzylpenicillin Procaine Injectable Suspension, Mfr. Std.



Veterinary Use Only

DIN 02408864


Benzylpenicillin procaine (Ph. Eur.) 300,000 IU (300 mg) per mL

PRESERVATIVE: Methylparahydroxybenzoate 1.1 mg/mL

Vet Pen 300 Indications

Vet Pen 300 is a sterile, aqueous antibiotic suspension for intramuscular use as an aid in the treatment of infections caused by bacterial organisms susceptible to penicillin in cattle, sheep, swine and horses:

Cattle: Bacterial pneumonia, calf diphtheria, footrot, metritis, and wound infections.

Sheep: Bacterial pneumonia, metritis, and wound infections.

Swine: Bacterial pneumonia, erysipelas, and wound infections.

Horses: Bacterial pneumonia, metritis, strangles, and wound infections.

Dosage and Administration

Shake well before using. Administer by deep intramuscular injection only, using a sterile hypodermic needle and syringe.

Cattle and Sheep: 21,000 IU/kg (7 mL/100 kg or 0.7 mL/10 kg) of body weight intramuscularly, once daily, until 2 days after clinical signs disappear. Do not exceed 5 days of treatment. Do not exceed 15 mL per injection site in cattle and 5 mL per injection site in sheep.

Swine: 15,000 IU/kg (1 mL/20 kg) of body weight intramuscularly, once daily, until 2 days after clinical signs disappear. Do not exceed 5 days of treatment. Do not exceed 10 mL per injection site.

Horses: 21,000 IU/kg (7 mL/100 kg) of body weight intramuscularly, twice daily at 12 hour intervals, until 2 days after clinical signs disappear or, in the case of respiratory infections, until 5 days after clinical signs disappear. Do not exceed 15 mL per injection site. Rotate injection sites for succeeding doses.

Note: If animals do not respond within 48 hours of administration of the first dose, clinical re-evaluation may be required. An alternative antibacterial therapy should be considered.


In case of anaphylactic or allergic reaction (acute respiratory distress, mouth breathing, recumbency), administer epinephrine immediately to prevent death.

In pigs, the administration of this product may occasionally cause a fever, vomiting, shivering, listlessness, incoordination and possibly, death. In pregnant sows and gilts, it may result in abortions.

In horses, benzylpenicillin procaine is occasionally associated with excitement and may cause pain at the site of injection. Repeated use of the same injection site may intensify these effects.


To avoid illegal residues, do not inject subcutaneously.

Treated animals must not be slaughtered for use in food for at least 10 days for cattle and sheep, and 8 days for swine after the latest treatment with this drug. This drug is not to be administered to horses that are to be slaughtered for use in food.

Milk taken from treated cattle and sheep during treatment and within 96 hours after the latest treatment must not be used in food. To avoid illegal residues in milk, do not use in dairy animals with clinical or subclinical mastitis and do not exceed the recommended dosage. The use of on-farm tests for detecting subclinical mastitis prior to treatment (C.M.T. or other tests) and/or for detecting residues prior to marketing milk from treated animals is recommended. Penicillins can cause allergic reactions in sensitized individuals. When handling the product, avoid inhalation, oral exposure and direct contact with skin or eyes. Keep out of the reach of children.


Store below 15 °C. Protect from light. Do not freeze. Protect from excessive heat and humidity.

Distributed by: Rafter 8 Products Inc., 87 Skyline Crescent N.E., Calgary, Alberta T2K 5X2



250 mL


CPN: 1219048.0

Telephone:   403-291-3640
Order Desk:   800-461-8615
Fax:   403-250-2703
THIS SERVICE AND DATA ARE PROVIDED "AS IS". Animalytix assumes no liability, and each user assumes full risk, responsibility, and liability, related to its use of the Animalytix service and data. See the Terms of Use for further details.


Copyright © 2024 Animalytix LLC. Updated: 2024-02-27