Analgesic:
Noun 1. analgesic - a medicine used to relieve pain
anodyne, pain pill, painkiller
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)