Ketotifen-<sup>13</sup>C-d<sub>3</sub>

Ketotifen-13C-d3

CAT N°: 28802
Price:

598.00 508.30

Ketotifen-13C-d3 is intended for use as an internal standard for the quantification of ketotifen (Item No. 20303) by GC- or LC-MS. Ketotifen is a histamine H1 receptor antagonist (Ki = 1.3 nM) and mast cell stabilizer.{21941,48520} It is selective for H1 receptors over H2 and H3 receptors (Kis = 987 and 2,500 nM, respectively).{21941} Ketotifen (50 and 100 ?M) inhibits degranulation of rat peritoneal mast cells induced by compound 48/80 (Item No. 22173).{48520} It inhibits the passive cutaneous anaphylaxis (PCA) reaction in rats by 54.6% when administered orally at a dose of 20 mg/kg.{32040} Ketotifen (30 mg/kg) inhibits the quick phase airway response in a rat ovalbumin-induced immediate airway response model.{26817} Formulations containing ketotifen have been used in the treatment of itching associated with allergic conjunctivitis.

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