| Description : | Fentanyl (FEN-ta-nil) belongs to the group of medicines called narcotic analgesics (nar-KOT-ik an-al-GEE-ziks). Narcotic analgesics are used to relieve pain. Fentanyl acts in the central nervous system (CNS) to relieve pain. Some of its side effects are also caused by actions in the CNS. |
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