Benadryl, which contains diphenhydramine, is a first-generation antihistamine. Benadryl works by blocking histamine, a substance that causes allergy symptoms. The ingredient diphenhydramine is also ...

Antihistamines are a widely used group of medications most commonly used to treat allergic conditions. Allergic conditions, ...

is a brand-name drug prescribed for dementia related to Alzheimer’s disease. Aricept has interactions with other drugs and certain supplements. Examples include antihistamines and nonsteroidal ...