Although phenylephrine is an ingredient in many well-known drugs, including Dayquil and Sudafed, its efficacy has long been questioned by experts. Drug manufacturers will probably be forced to ...
Acetaminophen 250mg, dextromethorphan HBr 10mg, guaifenesin 100mg, pseudoephedrine HCl 30mg; per liquid cap. See Contraindications. Increased risk of liver damage with ≥3 alcoholic drinks/day.