What is Diphenhydramine HCL?
Diphenhydramine HCL is a H1-histamine receptor antagonist. Diphenhydramine is categorized as an antihistaminic; sedative, hypnotic. Diphenhydramine hydrochloride in the parenteral form is a sterile, pyrogen-free solution available in a concentration of 50 mg of diphenhydramine hydrochloride per mL. The solutions for parenteral use have been adjusted to a pH between 5.0 and 6.0 with either sodium hydroxi de or hydrochlor ic acid and contains 0.1 mg/mL benzethonium chloride as a germicidal agent.
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