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  • Title: Effect of intranasal sumatriptan on gastric tone and sensitivity to distension.
    Author: Sarnelli G, Janssens J, Tack J.
    Journal: Dig Dis Sci; 2001 Aug; 46(8):1591-5. PubMed ID: 11508654.
    Abstract:
    Sumatriptan is able to improve symptoms of early satiety in dyspeptic patients by relaxing the gastric fundus. The aim of this study was to verify the efficacy of intranasal administration of sumatriptan on gastric sensory motor function, in order to provide a new pharmacotherapeutic approach to functional dyspepsia. Thirteen healthy subjects were investigated twice on separate days. A gastric barostat was used to study the effect of placebo and sumatriptan, 20 mg intranasally, on basal fundic tone. In addition, stepwise isobaric distensions were performed and perception was measured before and after administration of drugs. Placebo had no effect on gastric tone and on perception. Sumatriptan caused a small, but short-lasting gastric relaxation and had no significant effect on sensitivity to distension and gastric compliance. Unlike the subcutaneous formulation, the intranasal administration of sumatriptan had no effect on gastric sensory motor functions, and this probably reflects a low biovailability of intranasally administered sumatriptan.
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