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The effects on leucocyte motility of sulphasalazine (Salazopyrin) and its metabolites sulphapyridine and 5 amino-salicylic acid have been compared with those of prednisolone and indomethacin. Sulphasalazine, its active metabolite 5 amino-salicylic acid, and prednisolone are all potent inhibitors of leucocyte motility. Sulphapyridine and indomethacin are non-inhibitory. Inhibition of leucocyte motility may explain why sulphasalazine and 5 amino-salicylic acid are effective in ulcerative colitis while sulphapyridine is not. The lack of effect of indomethacin suggests that this action of sulphasalazine does not involve inhibition of prostaglandin synthesis.

Type

Journal article

Journal

Gut

Publication Date

08/1981

Volume

22

Pages

642 - 647

Keywords

Aminosalicylic Acids, Cell Movement, Chemotaxis, Leukocyte, Colitis, Ulcerative, Dose-Response Relationship, Drug, Humans, Indomethacin, Leukocytes, Mesalamine, Prednisolone, Sulfapyridine, Sulfasalazine