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.
|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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