Chlorpheniramine blocks histamine receptors and readily enters the brain, which is why it dries secretions well but also causes drowsiness. It is a standard ingredient of cold combinations.
Phenylephrine constricts the swollen blood vessels in the lining of the nose, which shrinks the tissue and opens the airway.
Most side effects are mild and settle as your body adjusts. Tell your doctor if any of them persist or trouble you.
888 brands with the same salt and strength — same form first, then cheapest. Pack size and form can still differ, and the same salt does not suit every patient. Please confirm with our pharmacist before switching.
Showing the 40 cheapest of 888 brands.