Anileridine is a synthetic analgesic

Analgesic

An analgesic is any member of the group of drugs used to relieve pain . The word analgesic derives from Greek an- and algos ....

 drug and is a member of the piperidine

Piperidine

Piperidine is an organic compound with the molecular formula 5NH. This heterocyclic amine consists of a six-membered ring containing five methylene units and one nitrogen atom...

 class of analgesic agents developed by Merck & Co. in the 1950s. It differs from meperidine (Demerol) in that the N-methyl group of meperidine is replaced by an N-aminophenethyl group, which increases its analgesic activity.

Anileridine is no longer manufactured in the US or Canada.

Pharmacokinetics

Anileridine usually takes effect within 15 minutes of either oral or intravenous administration, and lasts 2–3 hours. It is mostly metabolized by the liver

Liver

The liver is a vital organ present in vertebrates and some other animals. It has a wide range of functions, including detoxification, protein synthesis, and production of biochemicals necessary for digestion...

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