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L431 (Diphenhydramine hydrochloride 25 mg)

Pill imprint L431 has been identified as Diphenhydramine hydrochloride 25 mg.

Diphenhydramine is used in the treatment of insomnia; allergic reactions; cough; allergic rhinitis; cold symptoms (and more), and belongs to the drug classes anticholinergic antiemetics, anticholinergic antiparkinson agents, antihistamines, miscellaneous anxiolytics, sedatives and hypnotics. There is no proven risk in humans during pregnancy. Diphenhydramine 25 mg is not a controlled substance under the Controlled Substance Act (CSA).

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