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Systematic (IUPAC) name
ethyl 4-phenyl-1-(2-phenylmethoxyethyl)piperidine-4-carboxylate
CAS number 3691-78-9
ATC code  ?
PubChem 62516
Chemical data
Formula C23H29NO3 
Mol. mass 367.48 g/mol
Synonyms Benzethidine
Pharmacokinetic data
Bioavailability  ?
Metabolism  ?
Half life  ?
Excretion  ?
Therapeutic considerations
Pregnancy cat.


Legal status

Class A(UK) Schedule I(US)

Routes  ?

Benzethidine is a 4-phenylpiperidine derivative that is related to the opioid analgesic drug pethidine (meperidine).[1]

Benzethidine is not currently used in medicine and is a Class A/Schedule I drug which is controlled under UN drug conventions. It has similar effects to other opioid derivatives, such as analgesia, sedation, nausea and respiratory depression.[2]


  1. ^ Maul C, Buschmann H, Sundermann B. Opioids: 3.3 Synthetic Opioids. Analgesics 2005; 159-169. ISBN 9783527304035
  2. ^ Cahal DA, Dare JG, Keith D. A Sequential Trial of Analgesics in Labour. International Journal of Obstetrics and Gynaecology 1961; 68(1): 88–93.

UNODC Bulletin on Narcotics 1961

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Benzethidine". A list of authors is available in Wikipedia.
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