It is also used in combination nighttime cold medicines, such as Alka-Seltzer Plus Night Cold Formula, Tylenol Cold and Cough Nighttime, and NyQuil. Doxylamine can cause serious side effects, ...
Doxylamine and diphenhydramine are Food and Drug Administration (FDA) approved antihistamines used to treat insomnia, motion sickness, hay fever, and common cold symptoms, among other uses ... dosing ...