RT Book, Section A1 Williams, Saralyn R. A1 Thurman, R. Jason A2 Knoop, Kevin J. A2 Stack, Lawrence B. A2 Storrow, Alan B. A2 Thurman, R. Jason SR Print(0) ID 1181057151 T1 Plants with Belladonna Alkaloids T2 The Atlas of Emergency Medicine, 5e YR 2021 FD 2021 PB McGraw-Hill PP New York, NY SN 9781260134940 LK accessmedicine.mhmedical.com/content.aspx?aid=1181057151 RD 2024/04/24 AB There are several species of plants that contain tropane alkaloids consisting of atropine, scopolamine, and hyoscyamine compounds. Given the effect on the pupils with mydriasis, these are known as the belladonna (beautiful woman) alkaloids. Jimson weed species (Datura spp.) are the most well-known plants that contain these alkaloids. Ingestion may occur through the drinking of tea made from the leaves or flowers of the plant or from eating the plant’s seeds or leaves. Poisoned victims demonstrate an anticholinergic toxidrome resulting from the antimuscarinic receptor antagonistic effects of atropine and scopolamine. Patients may exhibit altered mental status, xerostomia, xeroderma, xerophthalmia, blurred vision, mydriasis, tachycardia, decreased bowel and bladder motility, and hyperthermia. Occasional presentations of unilateral mydriasis occur from topical exposure of the alkaloids (usually by touching the plant and then the eye).