Use of oral sodium cromoglycate in persistent diarrhoea.

Twenty patients with persistent diarrhoea participated in a randomised, double-blind trial of oral sodium cromoglycate and placebo. Eight patients noted significant improvement in their diarrhoea while taking sodium cromoglycate and this did not correlate with the presence of other atopic diseases, a history of food intolerance, or the presence of lactase deficiency. The results suggest that some patients with diarrhoea of unknown cause may have food allergy as a major contributing cause for their diarrhoea.