Diphenhist (diphenhydramine) is an antihistamine used to treat symptoms of seasonal allergies including sneezing, runny nose, and itching or watering eyes. It works by blocking the action of histamine which causes allergic symptoms. It is available over-the-counter, and also sold as generic diphenhydramine. Other brands include Benadryl. The lowest GoodRx price for the most common version of diphenhydramine is around $2.02, 71% off the average retail price of $7.10. Compare antihistamines.
Savings Alert: Diphenhydramine is available over-the-counter. You can use GoodRx coupons to save, but you will need to present a doctor’s prescription and purchase at the pharmacy counter. Learn More
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