PMID: 8962747Dec 1, 1995Paper

The preclinical toxicological evaluation of sumatriptan

Human & Experimental Toxicology
K OwenM R Jackson

Abstract

1 Sumatriptan is a potent and selective 5-HT1 receptor agonist marketed for the treatment of migraine by both oral and subcutaneous routes. An extensive toxicological programme employing high doses of sumatriptan was carried out in a range of animal species. The studies evaluated both the local and systemic tolerance to single and repeated dosing, effects on all stages of reproduction, as well as the genotoxic and oncogenic potential of sumatriptan. 2 The administration of relatively high single and repeated doses of sumatriptan was well tolerated by both rodents and dogs by the oral, subcutaneous and intravenous routes. Behavioural effects, suggestive of involvement of the central nervous system, were the most obvious result of such doses and were generally more pronounced in dogs than rodents. The reason for this may be related to the higher plasma concentrations of the drug achievable in dogs. Additional observations restricted to dogs, were transient, and included tachycardia, facial oedema and breaks in the continuity of secretion films on the corneal surface. A tendency for an increase in weight gain was seen for rats, while a slight decrease was usually seen for dogs. The only pathological changes related to treatment wi...Continue Reading

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Citations

Sep 28, 2002·CNS Drug Reviews·Jordi GrasJosé M Palacios

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