M 523 (Sotalol AF 80 mg)
Pill imprint M 523 has been identified as Sotalol hydrochloride AF 80 mg.
Sotalol is used in the treatment of atrial fibrillation; ventricular arrhythmia; atrial flutter and belongs to the drug classes group III antiarrhythmics, non-cardioselective beta blockers. There is no proven risk in humans during pregnancy. Sotalol 80 mg is not subject to the Controlled Substances Act.
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