No, you cannot buy over the counter (OTC) for humans or pets . In the United States, it is a prescription-only medication that requires authorization from a licensed healthcare provider. Why a Prescription is Required
Doctors must determine the correct initial and maintenance doses based on individual lab results. For Pet Owners (Cats) can i buy methimazole over the counter
If you are looking for Methimazole for a cat, it still requires a . No, you cannot buy over the counter (OTC) for humans or pets