Benadryl Dosages: How Much Benadryl Kids and Adults Can Take

Yes, you can buy (diphenhydramine) over the counter (OTC) in most countries, including the United States, Canada, and the United Kingdom . It is widely available at pharmacies and retail stores as a first-generation antihistamine used to treat allergy symptoms, cold symptoms, and occasionally as a short-term sleep aid. Quick Review: Benadryl (Diphenhydramine)