Lobelia is one of the most useful systemic relaxants available to us. It has a general depressant action on the central and autonomic nervous system and on neuro-muscular action. It may be used in many conditions in combination with other herbs to further their effectiveness if relaxation is needed. Its primary specific use is in bronchitic asthma and bronchitis. An analysis of the action of the alkaloids present reveal apparently paradoxical effect. The New Holistic Herbal by David Hoffmann Pg. 212