Active substance

Dextromethorphan Hbr, Guaifenesin, Phenylephrine Hci, Acetaminophen, Diphenhydramine Hci, Phenylephrine Hci

3 products from 3 companies contain this in United States.

3 without prescriptionKit

Available without a prescription

Same substance is not the same product. Strength, form, release mechanism and other ingredients all differ. Whether one can replace another is a decision for a pharmacist.