Meptazinol

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Meptazinol
Clinical data
AHFS/Drugs.comInternational Drug Names
Dependence
liability
Low
Routes of
administration
Oral, IM, IV
ATC code
Legal status
Legal status
  • AU: S4 (Prescription only)
  • UK: POM (Prescription only)
Pharmacokinetic data
MetabolismThe peak analgesic effect is seen within 30–60 minutes and lasts about 3–4 hours.
Elimination half-lifeHalf-Life (1.4–4 hours).
ExcretionThe drug is rapidly metabolised to the glucuronide, and mostly excreted in the urine.
Identifiers
CAS Number
PubChem CID
ChemSpider
UNII
KEGG
ChEMBL
E number{{#property:P628}}
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Chemical and physical data
FormulaC15H23NO
Molar mass233.34922 g/mol
3D model (JSmol)
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Meptazinol (trade name Meptid) is an opioid analgesic developed by Wyeth in the 1970s. Indications for use in moderate to severe pain, most commonly used to treat pain in obstetrics (childbirth). A partial µ-opioid receptor agonist, its mixed agonist/antagonist activity affords it a lower risk of dependence and abuse than full µ agonists like morphine. Meptazinol exhibits not only a short onset of action, but also a shorter duration of action relative to other opioids such as morphine, pentazocine, or buprenorphine.

It does not appear in the US Controlled Substances Act 1970; it may or may not be regulated as an analogue of controlled relatives such as proheptazine (ACSCN 9643)

References