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Diphenhydramine RX and OTC Products

Diphenhydramine products, available in both prescription (RX) and over-the-counter (OTC) forms, are primarily used as antihistamines to relieve symptoms of allergy, hay fever, and the common cold, such as runny nose, sneezing, itchy or watery eyes, and itchy throat. Additionally, they are commonly used as sedatives to address issues like insomnia and motion sickness, as well as to reduce symptoms of Parkinson's disease. Diphenhydramine is effective in managing itching from insect bites, hives, and other dermatitis-related conditions.