analgesic

An analgesic (also known as a painkiller) is any member of the group of drugs used to relieve pain (achieve analgesia). The word analgesic derives from Greek an- ("without") and algos ("pain").

Analgesic drugs act in various ways on the peripheral and central nervous systems; they include paracetamol ...

(para-acetylaminophenol, also known in the US as acetaminophen),

the non-steroidal anti-inflammatory drugs (NSAIDs) such as the salicylates,

and opioid drugs such as morphine and tramadol.

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