Medically reviewed by Daniel Combs, MD Benadryl (diphenhydramine) is an over-the-counter (OTC) antihistamine commonly used to ...

Use this medication only on the skin as directed by your doctor. If you are self-treating, follow all directions on the product package. If you have any questions, ask your doctor or pharmacist.

The correct dosage of diphenhydramine for dogs depends on their weight ... are going to give your dog Benadryl, keep this guidance in mind: While the right dose of Benadryl is safe for most ...