The effect of oral doxantrazole on allergen-induced bronchospasm

The protective effect of 200 mg doxantrazole given orally on allergen-induced bronchoconstriction has been compared with 20 mg inhaled disodium cromoglycate (DSCG) in 15 patients with bronchial asthma and immediate-type hypersensitivity. Only four out of the 15 patients showed a significant inhibition of their bronchoconstriction after the oral intake of doxantrazole. Nine patients were significantly protected by 20 mg DSCG. All patients responding to doxantrazole also responded well to DSCG.