Pill with imprint A99 is Blue, Oval and has been identified as Diphenhydramine Hydrochloride 50 mg. It is supplied by Dolgencorp, LLC.

Diphenhydramine is used in the treatment of Allergic Reactions; Allergic Rhinitis; Cough; Insomnia; Cold Symptoms 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 50 mg is not a controlled substance under the Controlled Substances Act (CSA).