SPL Set ID: 3842d802-9b18-2c5e-e063-6394a90ae763
1 drug(s) with this SPL Set ID
Diphenhydramine hydrochloride USP is an antihistamine drug having the chemical name 2-(Diphenylmethoxy)-N,N-dimethylethylamine hydrochloride. It occurs as a white, crystalline powder, is freely soluble in water and alcohol and has a molecular weight of 291.82. The molecular formula is C 17 H 21 NO • HCl. The structural formula is as follows: Diphenhydramine hydrochloride USP in the parenteral form is a sterile, pyrogen-free solution available in a concentration of 50 mg of diphenhydramine hydrochloride USP per mL. The solutions for parenteral use have been adjusted to a pH between 4 and 6.5 with either sodium hydroxide or hydrochloric acid. Structure