Mydriatic alkaloids

The names, formulae and structures of these alkaloids are given in the following table. The esters of tropine or -tropine are known as tropeines or -tropeines respectively. The first eleven items in the table are sometimes called the solanaceous alkaloids, but they are not the only alkaloids, or even the only type of alkaloid, found in the botanical family Solanaceas. They are also sometimes referred to as the mydriatic alkaloids though other alkaloids also exert this action. 

On Datura stramonium stocks similar results have been obtained, and i-hyoscyamine has been isolated from the tomato scions as the aurichloride (76). The fruits when eaten by humans caused dryness of the mouth, dilation of the pupils and other signs of hyoscyamine poisoning according to Krajevoj and Nachev (75) but Vincent and Dulucq-Mathou (80a) were able to find mydriatic alkaloids only in the leaves. Ripe fruits gave none. 

Farr, E.H., and R. Wright. 1904. The doubted presence of a mydriatic alkaloid in Lactuca virosa. Pharm.. 18 186-187. 

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