An Analgesic is a Medicine That Relieves Pain.
The medicines are commonly used to treat pain due to arthritis, surgery, injury, toothache, headache, menstrual cramps, sore muscles, or other causes.
Analgesic, any drug that relieves pain selectively without blocking the conduction of nerve impulses, markedly altering sensory perception, or affecting consciousness. This selectivity is an important distinction between an analgesic and an anesthetic.