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.

Benadryl (diphenhydramine) is a brand-name drug used for allergies, allergic reactions, and itching. Benadryl comes in several forms that are available over the counter. The dosage can vary depending ...

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 ...

Imodium (loperamide) is an over-the-counter (OTC) drug that’s used to treat diarrhea. The drug comes as an oral tablet, oral capsule, and oral liquid solution. Your dosage will vary depending on the ...