U.S. Food and Drug Administration
Center for Food Safety and Applied Nutrition
NCBI/NLM/NIH Glossary
atropine
A toxic alkaloid, originally from Atropa belladonna, but found in other plants, mainly Solanaceae. It is used as an antimuscarinic agent for relaxation of smooth muscle, to increase heart rate, as an anesthetic premedication, as an antispasmotic, in anticholinesterase poisoning, in aspiration pneumonitis, in bronchial disorders, or to dilate the pupil, among other uses