Macleod Pharmaceuticals is the original manufacturer of UNIPRIM® Powder for horses. Our research, development and manufacturing activities have taken place in the United States continuously since 1989. We share your passion for horses and work to ensure their health.

Proudly made in the USA
UNIPRIM®
Powder for horses
(Sulfadiazine and Trimethoprim)
Oral equine antibiotic available through veterinarians by prescription only
Apple UNIPRIM®
Powder for horses
(Sulfadiazine and Trimethoprim)
Flavored oral equine antibiotic available through veterinarians by prescription only