Active Ingredient History
Diphenhydramine (DPH) is an antihistamine medication mainly used to treat allergies. It can also be used for insomnia, symptoms of the common cold, tremor in parkinsonism, and nausea. It is taken by mouth, injected into a vein, injected into a muscle, or applied to the skin. Maximal effect is typically around two hours after a dose, and effects can last for up to seven hours. Wikipedia
Drug Pricing (per unit)
Note: This drug pricing data is preliminary, incomplete, and may contain errors.
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