Some good effects were reported in the literature of the use of Khellin, an extract of seeds of Ammi Visnaga, by intramuscular route in bronchial asthma. The authors tried 7 mg. of Khellin by the aerosol spray route during 5 minutes on 10 patients with bronchial asthma, with very satisfying clinical results. Control of vital capacity showed an increase in all cases, (average 404.8 ccm.). The tidal air was increased to a lesser extent. Six controls, suffering from other ailments (heart disease, thyreotoxicosis, etc.) did not show any increase of vital capacity.