Active substance

Acetaminophen, Dextromethorphan Hbr, Doxylamine Succinate Solution

2 products from 2 companies contain this in United States.

2 without prescriptionSolutionLiquid

Available without a prescription

24-7 Life By 7-Eleven Nighttime Cold and Flu30 mg/30mL + 650 mg/30mL + 12.5 mg/30mLWithout prescriptionSolution Lil' Drug Store products, Inc. · Acetaminophen, Dextromethorphan Hbr, Doxylamine Succinate Solution Nighttime Relief, Cold and Flu, 24-7 Life By 7-Eleven650 mg/30mL + 12.5 mg/30mL + 30 mg/30mLWithout prescriptionLiquid Lil' Drug Store Products, Inc. · Acetaminophen, Dextromethorphan Hbr, Doxylamine Succinate Solution

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.