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Systematic (IUPAC) name
Clinical data
Routes of
Oral, IM, IV
Legal status
Legal status
  • UK: POM (Prescription only)
Pharmacokinetic data
Metabolism The peak analgesic effect is seen within 30–60 minutes and lasts about 3–4 hours.
Biological half-life Half-Life (1.4–4 hours).
Excretion The drug is rapidly metabolised to the glucuronide, and mostly excreted in the urine.
CAS Number 54340-58-8
ATC code N02AX05 (WHO)
PubChem CID 41049
Chemical data
Formula C15H23NO
Molar mass 233.34922 g/mol[[Script error: No such module "String".]]
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Meptazinol (trade name Meptid) is an opioid analgesic for use with 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.[1]


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External links

de:Meptazinol pl:Meptazinol
  1. Holmes B, Ward A. "Meptazinol. A review of its pharmacodynamic and pharmacokinetic properties and therapeutic efficacy." Drugs. 1985 Oct; 30(4):285-312. PMID 2998723