Non-drowsy antihistamines Most of the time, you'll want to take a non-drowsy antihistamine to reduce allergies that strike during the day. Non-drowsy antihistamines are recommended for their ...

On non-drowsy formulas, look for stimulants such ... diphenhydramine (found in Benadryl) or doxylamine, which can make you sleepy. Both are antihistamines that affect the central nervous system.

Robitussin was at the center of a class-action complaint over its “non-drowsy” cough and cold medicines. Screengrab from Calchi, et al. v. GlaxoSmithKline Consumer Healthcare Holdings (US ...