Preparation method of diphenhydramine citrate_Kain Industrial Additive

Background and overview[1][2] Diphenhydramine citrate, usually diphenhydramine citrate, has antihistamine, sedative, local anesthesia, antiemetic and anti-M-cholinergic effects. It is commonly used clinically for skin and mucous membrane allergies, Acute allergic reactions, prevention and treatment of motion sickness, hypnosis and preoperative medication, dental local anesthesia, antitussive, etc. It can also be used to fight shaking paralysis,…