Active substance
Acetaminophen and Diphenhydramine
2 products from 2 companies contain this in United States.
2 without prescriptionTabletCapsule, Coated
Available without a prescription
Counteract Pm25 mg + 500 mgWithout prescription Melaleuca, Inc. · Acetaminophen and DiphenhydraminePercogesic Extra Strength500 mg + 12.5 mgWithout prescription Medtech Products Inc. · Acetaminophen and Diphenhydramine
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.