Anileridine (trade name: Leritine) is a synthetic analgesic drug[2] and is a member of the piperidine class of analgesic agents[3] developed by Merck & Co. in the 1950s.[4] It differs from pethidine (meperidine) in that the N-methyl group of meperidine is replaced by an N-aminophenethyl group, which increases its analgesic activity.
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Trade names | Leritine |
AHFS/Drugs.com | Monograph |
Routes of administration | Tablets, injection |
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Protein binding | > 95% |
Metabolism | Hepatic |
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Formula | C22H28N2O2 |
Molar mass | 352.478 g·mol−1 |
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Melting point | 83 °C (181 °F) |
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Anileridine is no longer manufactured in the US or Canada.[5] Anileridine is in Schedule II of the Controlled Substances Act 1970 of the United States as ACSCN 9020 with a zero aggregate manufacturing quota as of 2014. The free base conversion ratio for salts includes 0.83 for the dihydrochloride and 0.73 for the phosphate.[6] It is also under international control per UN treaties.
Anileridine usually takes effect within 15 minutes of either oral or intravenous administration, and lasts 2–3 hours.[8] It is mostly metabolized by the liver.