The effect of disodium cromoglycate and ketotifen on the excretion of histamine and N tau‐methylimidazole acetic acid in urine of patients with mastocytosis.

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Abstract
Treatment of four mastocytosis patients with the mast cell stabilising drugs, disodium cromoglycate and ketotifen failed to alter significantly the urinary excretion levels of histamine or N.tau.-methylimidazole acetic acid. No clinical improvement was noted in any subject after treatment by either drug.