Benadryl

Benadryl (diphenhydramine) is a first-generation antihistamine supplied, though not directly manufactured, by VuRoyal (SuQian) Pharmaceutical Company LLC, used mainly to relieve allergic symptoms such as allergic rhinitis and urticaria, with a sedative effect that can also aid short-term sleep. The supplier notes common side effects including drowsiness, dry mouth, and dizziness, along with cautions around driving, glaucoma, prostate hypertrophy, and use during pregnancy or lactation; it is sold across North America and Central/South America.