Phenylephrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose)...learn more »

Morphine is in a group of drugs called narcotic pain relievers...learn more »

Metoprolol is in a group of drugs called beta-blockers. Beta-blockers affect the heart and circulation (blood flow through arteries and veins)...learn more »

Propranolol is a beta-blocker. Beta-blockers affect the heart and circulation (blood flow through arteries and veins)...learn more »