Dextromethorphan is a generic over-the-counter (OTC) drug used to relieve cough. The drug comes as an oral suspension and an oral liquid capsule. How often you take it depends on the form you take.

Acetaminophen is a generic drug that’s taken for pain relief and fever reduction in adults and some children. Acetaminophen comes in several dosage forms. The dosage can vary depending on what ...