acetaminophen, Anacin III, Datril, Panadol, Phenaphen, Tempra, Tylenol - an analgesic for mild pain; also used as an antipyretic; (Datril and Tylenol and Panadol and Phenaphen and Tempra and Anacin III are trademarks of brands of acetaminophen tablets)

acetanilid, acetanilide, phenylacetamide - a white crystalline compound used as an analgesic and also as an antipyretic

acetophenetidin, acetphenetidin, phenacetin - a white crystalline compound used as an analgesic and also as an antipyretic

amidopyrine, aminopyrine - a white crystalline substance used as an analgesic and antipyretic

acetylsalicylic acid, aspirin, Bayer, Empirin - the acetylated derivative of salicylic acid; used as an analgesic anti-inflammatory drug (trade names Bayer and Empirin) usually taken in tablet form; used as an antipyretic; slows clotting of the blood by poisoning platelets

codeine - derivative of opium; used as an antitussive (to relieve coughing) and an analgesic (to relive pain)

colchine - an analgesic drug derived from the saffron plant and used to treat gout

Fentanyl, Sublimaze - trade names of a narcotic analgesic that can be inhaled and that acts on the central nervous system and may become addictive; used as a veterinary anesthetic and with other drugs before, during, and after surgery; also used as a nonlethal gas to incapacitate people in hostage situations; also abused as a recreational drug

Dilaudid, hydromorphone, hydromorphone hydrochloride - a narcotic analgesic (trade name Dilaudid) used to treat moderate to severe pain

medicament, medication, medicinal drug, medicine - (medicine) something that treats or prevents or alleviates the symptoms of disease

morphia, morphine - an alkaloid narcotic drug extracted from opium; a powerful, habit-forming narcotic used to relieve pain

pentazocine, Talwin - analgesic drug (trade name Talwin) that is less addictive than morphine

phenazopyridine, Pyridium - analgesic (trade name Pyridium) used to treat urinary tract infections

Darvon, propoxyphene, propoxyphene hydrochloride - a mildly narcotic analgesic drug (trade name Darvon) related to methadone but less addictive

sodium salicylate - a crystalline salt used as an analgesic and antipyretic