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Ciramadol: Wikis

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Systematic (IUPAC) name
3-[(R)-dimethylamino-[(1R,2 R)-2-hydroxycyclohexyl]methyl]phenol
CAS number 63269-31-8
ATC code none
PubChem 44463
Chemical data
Formula C 15H23NO2  
Mol. mass 249.349 g/mol
Synonyms Ciramadol, WY-15705
Pharmacokinetic data
Bioavailability  ?
Metabolism  ?
Half life  ?
Excretion  ?
Therapeutic considerations
Pregnancy cat.  ?
Legal status
Routes  ?

Ciramadol (WY-15,705) is an opioid analgesic that was developed in the late 1970s.[1] It is a mixed agonist-antagonist for the mu-opioid receptor with relatively low abuse potential[2] and a ceiling on respiratory depression[3] which makes it a relatively safe drug. It has a slightly higher potency and effectiveness as an analgesic than codeine,[4] but is weaker than morphine.[5] Other side effects include sedation and nausea but these are generally less severe than with other similar drugs.[6]

See also


  1. ^ Cochrane AD, Bell R, Sullivan JR, Shaw J. Ciramadol. A new analgesic. Medical Journal of Australia. 1979 Nov 3;2(9):501-2.
  2. ^ Preston KL, Bigelow GE, Liebson IA. Comparative evaluation of morphine, pentazocine and ciramadol in postaddicts. Journal of Pharmacology and Experimental Therapeutics. 1987 Mar;240(3):900-10.
  3. ^ Romagnoli A, Keats AS. Low ceiling respiratory depression by ciramadol. International Journal of Clinical Pharmacology Research. 1986;6(6):451-5.
  4. ^ Downing JW, Brock-Utne JG, Holloway AM. Ciramadol - a new synthetic analgesic. A double-blind comparison with oral codeine for postoperative pain relief. South African Medical Journal. 1983 Dec 10;64(25):978-82.
  5. ^ Powell WF. A double-blind comparison of multiple intramuscular doses of ciramadol, morphine, and placebo for the treatment of postoperative pain. Anesthesia and Analgesia. 1985 Nov;64(11):1101-7.
  6. ^ Stambaugh JE Jr, McAdams J. Comparison of the analgesic efficacy and safety oral ciramadol, codeine, and placebo in patients with chronic cancer pain. Journal of Clinical Pharmacology. 1987 Feb;27(2):162-6.

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