lobeline

An acrid poisonous principle procured from Lobelia inflata, said to resemble nicotine.

A poisonous narcotic alkaloid extracted from the leaves of Indian tobacco (Lobelia inflata) as a yellow oil, having a tobaccolike taste and odor.

A natural alkaloid found in various plants, mostly of the genus Lobelia, a white amorphous powder which is freely soluble in water, used as an aid to smoking cessation.