§ 14928 Animal Drug Definition

• •A drug is any substance used to diagnose, cure, treat, or prevent disease in any animal.
• •It also includes any substance (except regular animal feed) that changes an animal’s body structure or how it works.
• •The definition covers all animals, not just pets or livestock.

A farmer gives a cow a medicine to stop a bacterial infection.

Because the medicine is meant to treat a disease in the cow, the law says that medicine is a “drug.”