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

Do not use a household spoon because you may not get the correct dose. If you have a single-dose ... pharmacist about using this product safely. Children may be more sensitive to the side effects ...

The children’s formula of liquid Benadryl ... If you realize you’ve missed giving a dose of Benadryl to your dog, consult ...

Benadryl is a human medication that can be used in dogs to relieve allergy symptoms. But you have to be sure you're giving the right dose for your dog's size. (Photo Credit: E+/Getty Images ...