from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. 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.
from the GNU version of the Collaborative International Dictionary of English
- n. A poisonous narcotic alkaloid extracted from the leaves of Indian tobacco (Lobelia inflata) as a yellow oil, having a tobaccolike taste and odor.
from The Century Dictionary and Cyclopedia
- n. An acrid poisonous principle procured from Lobelia inflata, said to resemble nicotine.
In certain cases (lobeline, nicotine, cyanide, sulphide, etc.) the drug acts on the glomus, in others (e.g. Cardiazol) it acts by central stimulation and again in other cases (e.g. Coramine) it acts centrally and peripherally.
It may be mentioned here that the effects of the venomous alkaloid spigeline present in pinkroot is similar to those of nicotine, coniine and lobeline.