Your veterinarian is the best source of information about your pet’s health. You and your veterinarian should discuss how to best treat your pet for any illness.
If the label on the supplement suggests that the product can “treat” or “prevent” a disease, the manufacturer is making a drug claim and the supplement should be regulated by FDA as an animal drug. If the product is an animal drug but has not been reviewed under FDA’s approval process, it is an unapproved animal drug. Unapproved animal drugs may not meet FDA’s strict standards for safety and effectiveness. With no review by FDA, there is no way for pet owners and veterinarians to know if the supplement is safe or if the claims on the label are true.