Active Ingredients Common Dosage Purpose Chlorpheniramine Maleate 2 mg – 4 mg Antihistamine (relieves allergies, runny nose, sneezing) Phenylephrine/Pseudoephedrine 5 mg – 10 mg Decongestant (reduces nasal congestion) Dextromethorphan HBr 10 mg – 15 mg Cough suppressant (relieves dry cough) Ammonium Chloride/Guaifenesin 50 mg – 100 mg Expectorant (loosens mucus for wet cough) Paracetamol (Acetaminophen) 125 mg – 250 mg Fever & pain reliever (if included)