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Quartermaster Rx

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Product Overview

How To Use

What’s in it?


Questions & Answers

Product Description

QUARTERMASTER (penicillin-dihydrostreptomycin in oil) is intended for administration in fair cows during their durations of drying out. The medication’s effect helps to diminish the intensity of current Staphylococcus aureus infections and inhibit the risk of reinfection. 

What is Quartermaster?

Is indicated for use in dairy cows at drying off to reduce the frequency of existing infection and to prevent new infection with Staphylococcus aureus in dry cows.

Who is Quartermaster for?

For use in cattle

Why use Quartermaster?

This product helps to decrease the prevalence of active infections. It also works as defense against future infections.



Active ingredient(s):

penicillin-dihydrostreptomycin in oil

How is Quartermaster sold?

Box of 12

What are the side effects of Quartermaster?

For intramammary insertion in drying off cattle only. Do not administer six weeks before freshening. Do not administer to cattle that have begun to lactate. Milk extracted from cattle ninety-six hours post calving cannot serve as food. Do not slaughter for food for sixty days after administration or ninety-six hours after calving.

What to do if overdose?

Immediately contact your closest emergency animal hospital.

How can I store Quartermaster?

Store in a dry and cool environment. 68° to 77°F (20° to 25°C).

Helpful Tips:

Pharmacists are standing by to offer Pet Parent counseling regarding prescription medication purchased from Allivet before and after dispensing. Pharmacists on duty are available Monday-Friday, 9:30AM - 5:30PM EST and will be on call Saturday 12:00PM - 4:00PM EST for consultation.


The FLEXI-TUBE is designed to provide the choice of either insertion of the full cannula, as has traditionally been practiced, or insertion of no more than 1/8 inch of the cannula, as recommended by the National Mastitis Council.
a. Full Insertion: Remove the white end cap by pulling straight up as shown. Gently insert the full cannula into the teat canal; carefully infuse the product.
b. Partial Insertion: Remove both the white end cap and the red cannula by pushing sideways as shown. Gently insert the exposed white tip into the teat canal; carefully infuse the product.

Main Ingredients

penicillin-dihydrostreptomycin in oil

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