|Systematic (IUPAC) name|
|Mol. mass||291.729 g/mol|
Zomepirac is an orally effective NSAID that has antipyretic actions. It was developed by McNeil Pharmaceutical and approved by the FDA in 1980 and sold as the sodium salt, zomepirac sodium, under the brand name Zomax. Due to its clinical effectiveness, it was preferred by doctors in many situations and obtained a large share of the analgesics market; however, it was subsequently withdrawn in March 1983 due to its tendency to cause serious anaphylaxis in an unpredictable subset of the patient population.
Zomepirac was indicated for the management of mild to severe pain. Multiple clinical trials demonstrated zomepirac to be more effective than aspirin or codeine alone and to be as effective as analgesic combinations containing codeine or other opioids. Zomepirac provided analgesia comparable with usual intramuscular doses of morphine in postoperative pain and that with long-term use, neither tolerance to its analgesic effect nor psychological or physical dependence had been demonstrated.
Mechanism of action
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- Mehlisch DR, Joy ED (1981). "Zomepirac sodium vs APC with codeine for oral surgery pain". Journal of oral surgery (American Dental Association : 1965) 39 (6): 426–9. PMID 7014804.
- Stambaugh JE, Sarajian C (1981). "Analgesic efficacy of zomepirac sodium in patients with pain due to cancer". Journal of clinical pharmacology 21 (11–12 Pt 1): 501–7. PMID 7037868.
- Evans PJ, McQuay HJ, Rolfe M, O'Sullivan G, Bullingham RE, Moore RA (1982). "Zomepirac, placebo and paracetamol/dextropropoxyphene combination compared in orthopaedic postoperative pain". British journal of anaesthesia 54 (9): 927–33. PMID 7052110. doi:10.1093/bja/54.9.927.
- Baird WM, Turek D (1980). "Comparison of zomepirac, APC with codeine, codeine and placebo in the treatment of moderate and severe postoperative pain". Journal of clinical pharmacology 20 (4 Pt 2): 243–9. PMID 6991540.
- Mehlisch DR, Joy ED, Moore TE, Porter K, Stumpf AJ, Wolfe SH (1980). "Clinical comparison of zomepirac with APC/codeine combination in the treatment of pain following oral surgery". Journal of clinical pharmacology 20 (4 Pt 2): 271–8. PMID 6991544.
- Diamond S, Medina JL (1981). "A double-blind study of zomepirac sodium and placebo in the treatment of muscle contraction headache". Headache 21 (2): 45–8. PMID 7016809. doi:10.1111/j.1526-4610.1981.hed2102045.x.
- Wallenstein SL, Rogers A, Kaiko RF, Heidrich G, Houde RW (1980). "Relative analgesic potency of oral zomepirac and intramuscular morphine in cancer patients with postoperative pain". Journal of clinical pharmacology 20 (4 Pt 2): 250–8. PMID 6991541.
- DC McLeod, Zomepirac (Zomax, McNeil Pharmaceutical), Drug Intelligence & Clinical Pharmacy: Vol. 15, No. 7, pp. 522-530.
- Smith PC, McDonagh AF, Benet LZ (1986). "Irreversible binding of zomepirac to plasma protein in vitro and in vivo". Journal of clinical investigation 77 (3): 934–939. PMC 423485. PMID 3949982. doi:10.1172/JCI112392.