For research use only.
CAS No. 5053-08-7
Fenspiride is a bronchodilator with anti-inflammatory properties, inhibiting phosphodiesterase 4 and phosphodiesterase 3 activities with logIC50 values of 4.16 and 3.44, respectively, in human isolated bronchi.
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|Description||Fenspiride is a bronchodilator with anti-inflammatory properties, inhibiting phosphodiesterase 4 and phosphodiesterase 3 activities with logIC50 values of 4.16 and 3.44, respectively, in human isolated bronchi.|
|Features||Produces less than 25% inhibition of phosphodiesterase 1 and phosphodiesterase 2 activities.|
Fenspiride induces potentiation of the effects of isoprenaline and sodium nitroprusside with logEC50 of 4.1 and 3.5, respectively, in human isolated bronchi. 
|In vivo||Fenspiride, an antiinflammatory drug with low anti-cyclooxygenase activity, administered orally at 60-200 mg/kg inhibits neutrophil migration into peritoneal and air pouches cavities as well as exudation into peritoneal cavities induced by endotoxin but not induced by carrageenin in the rat. Fenspiride (200 mg/kg) inhibits the release of tumour necrosis factor by stimulated macrophages in a dose-dependent manner in the rat.  Fenspiride (Topically applied) is found to inhibit the development of sclerotic lesions in myringotomized rats, whereas intraperitoneal injections are ineffective.  Fenspiride (60 mg/kg) significantly reduces the lipopolysaccharide-induced early rise of tumor necrosis factor concentrations in serum (4.2 ng/mL vs. 2.3 ng/mL) and in the bronchoalveolar lavage fluid (55.7 ng/mL vs. 19.7 ng/mL) of guinea-pigs with endotoxemia. Fenspiride (60 mg/kg) also significantly reduces the lipopolysaccharide-induced primed stimulation of alveolar macrophages, defined as their enhanced release of arachidonic acid metabolites as compared to cells from untreated controls upon stimulation with N-formyl-methionyl-phenylalanine. Fenspiride (60 mg/kg) reduces the increased serum concentrations of extracellular type II phospholipase A2, the intensity of the neutrophilic alveolar invasion and the lethality due to the lipopolysaccharide in guinea-pigs with endotoxemia. |
|In vitro||Water||59 mg/mL (198.79 mM)|
|DMSO||9 mg/mL (30.32 mM)|
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