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Propen LA (Canada)

This page contains information on Propen LA for veterinary use.
The information provided typically includes the following:
  • Propen LA Indications
  • Warnings and cautions for Propen LA
  • Direction and dosage information for Propen LA

Propen LA

This treatment applies to the following species:
Company: Vetoquinol

(Penicillin G Procaine)

Sterile Injectable Suspension

300 mg / mL

DIN 02239151

Veterinary Use Only


PROPEN LA is specifically formulated to provide sustained antibacterial activity in cattle and pigs following a single administration.

PROPEN LA is a sterile, long acting stable suspension for parenteral administration containing 300 mg Penicillin G Procaine per mL.


PROPEN LA offers the advantage of combining antibacterial effectiveness, with prolonged antibiotic blood levels following a single treatment, thereby reducing the number of injections required in a course of penicillin therapy.

Propen LA Indications

PROPEN LA is indicated for the treatment of the following infections caused by bacteria susceptible to penicillin.

CATTLE: Bacterial pneumonia, calf diphtheria, footrot, metritis, wound infections.

SWINE: Bacterial pneumonia, erysipelas, wound infections.

Dosage and Administration

CATTLE: PROPEN LA may be administered by either the subcutaneous or intramuscular route of administration to non-lactating cattle.

SWINE: PROPEN LA may be administered by the intramuscular route only.

The recommended dose rate is 20 mg Penicillin G Procaine per kg bodyweight, equivalent to 1 mL per 15 kg bodyweight. If necessary, the dose may be repeated after 72 hours.

Do not exceed 15 mL per injection site in cattle and 10 mL per injection site in pigs.

NOTE: If animals do not respond within 48 hours of administration of the first dose, consult a veterinarian. An alternative antibacterial therapy should be considered.

Shake well before using.


Contraindicated in known cases of hypersensitivity to penicillin.

In case of anaphylactic 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.


Do not administer to lactating dairy cattle.

Subcutaneous Administration:

Cattle must not be slaughtered for use in food at least 14 days after the latest treatment with this drug.

Intramuscular Administration:

Cattle must not be slaughtered for use in food for at least 21 days after the latest treatment with this drug.

Pigs must not be slaughtered for use in food for at least 10 days after the latest treatment with this drug.


Store between 15°C and 25°C.


PROPEN LA is available in multi-dose vials of 100 mL (code 01420), 250 mL (code 01421) and 500 mL (code 01422).

Vetoquinol N.-A. Inc., 2000, ch. Georges, Lavaltrie, QC, Canada J5T 3S5





100 mL


216993C04, 030491L09

250 mL


216994C04, 035491L09

500 mL


216998C04, 036491L09

NAC No.: 1234229.5

Commercial Division

Telephone:   450-586-2252
Order Desk:   800-363-1700
Fax:   450-586-4649
Every effort has been made to ensure the accuracy of the Propen LA information published above. However, it remains the responsibility of the readers to familiarize themselves with the product information contained on the Canadian product label or package insert.

Copyright © 2019 Animalytix LLC. Updated: 2019-09-30