Not Medical Advice: White, round-shape pill with M PT 25 imprint has been identified as Promethazine hydrochloride 25 mg.
According to Drugs.com, promethazine belongs to the drug classes antihistamines, phenothiazine antiemetics. It blocks the effects of the naturally occurring chemical histamine in your body.
Promethazine is used in the treatment of opiate adjunct, light sedation, sedation, nausea/vomiting, allergic reactions and more.
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