Diphenhydramine Hcl has the following effects: (1) antihistamine effect; (2) inhibition of central nervous system activity caused by sedative and hypnotic effect; (3) strengthening the effect of antitussive drugs; (4) anti-vertigo, anti-tremor paralysis effect.
Diphenhydramine hydrochloride is mainly used for: skin and mucous membrane allergies, such as urticaria, angioedema, allergic rhinitis, skin pruritus, drug eruption, insect bites and contact dermatitis is also effective, motion sickness prevention and treatment, has a strong antiemetic effect, Parkinson's disease and extrapyramidal symptoms, sedation, hypnosis, strengthen the effect of antitussive, suitable for the treatment of cough caused by colds or allergies.
|Appearance||White or almost white crystalline powder||White crystalline powder|
|Loss on drying||≤0.5%||0.19%|
|Appearance:||White or almost white crystalline powder|
Diphenhydramine Hcl can eliminate various allergic symptoms, has sedation, anti motion and antiemetic effect, also has anticholinergic effects, can relieve the spasm of bronchial smooth muscle.
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