Answer
Feb 13, 2026 - 09:57 AM
Dextromethorphan and quinidine (brand name Nuedexta) is a prescription medication used to treat pseudobulbar affect (PBA), a condition characterized by sudden, uncontrollable episodes of laughing or crying. Dextromethorphan acts on the brain to help regulate mood, while quinidine increases the effectiveness of dextromethorphan by slowing its breakdown in the body.
