Scopolamine , known by the names levo-duboisine and hyoscine , is a tropane alkaloid drug with muscarinic antagonist effects. It is obtained from plants of the family Solanaceae (nightshades), such as henbane , jimson weed and Angel's Trumpets ( Datura resp. more

Scopolamine , known by the names levo-duboisine and hyoscine , is a tropane alkaloid drug with muscarinic antagonist effects. It is obtained from plants of the family Solanaceae (nightshades), such as henbane , jimson weed and Angel's Trumpets ( Datura resp. Brugmansia spec.), and corkwood ( Duboisia species ). It is among the secondary metabolites of these plants. Therefore, scopolamine is one of three main active components of belladonna and stramonium tinctures and powders used medicinally along with atropine and hyoscyamine . Scopolamine was isolated from plant sources by scientists in 1881 in Germany and description of its structure and activity followed shortly thereafter and much knowledge was acquired prior to 1881 as the alkaloid was known for a number of years as levo-duboisine. [ citation needed ] less