Founded in 1978, PRN® Pharmacal was built on a simple belief: the veterinary community needed a company dedicated to addressing unmet needs in animal health. Today, PRN continues that mission by developing innovative, niche products and therapies that improve the health and quality of life of animals.

The name PRN comes from the Latin phrase pro re nata, meaning “as the circumstance arises” or “as needed.” That idea has been at the heart of PRN from the beginning—and remains its commitment today: being there when the veterinary community needs solutions most.