Nightshade poisoning caused

When taken in very large amounts, atropine poisoning occurs this may, for example, be seen following poisoning by deadly nightshade berries. These berries can cause symptoms which patients have colourfully described as ... 

Atropine is an alkaloid isolated from Atropa bellactonna, the deadly nightshade plant. In the Renaissance, women used the juice of the berries of the nightshade to enlarge the pupils of their eyes for cosmetic reasons. Atropine causes an increase in heart rate, relaxes smooth muscles, and interferes with nerve impulses transmitted by acetylcholine In higher doses atropine is poisonous, leading to convulsions, coma, and death. 

Atropine, C]7H2jNO. is a poisonous alkaloid isolated from the leaves and roots of Atropa belladonna, the deadly nightshade. In low doses, atropine acts as a mu relaxant 0.5 ng (nanogram, 10 g) is sufficient to cause pupil dilation. Onh hydrolysis, atropine yields tropic acid, CbHjCH(CH20H)COOH, and tropine, CjHuIK Tropine is an optically inactive alcohol that yields tropidene on dehydration 1 H2SO4. Propose a structure for atropine. 

Henbane (Hyoscyamine niger), a sticky, bad-smell-ing weed containing the powerful narcotics hyoscyamine and scopolamine, was also collected as arrow poison in antiquity. Henbane causes violent seizures, psychosis, and death. Other plant juices used on projectiles included hemlock [Conium maculatum), yew (Taxus), rhododendron, and several species of deadly nightshade or belladonna, which causes vertigo, extreme agitation, coma, and death. The... 

Weeds sueh as ragwort, horsetails, nightshade, foxgloves and hemlock are poisonous and if eaten by stock are likely to cause poor growth or even death. Fortunately, most stoek animals normally do not eat poisonous weeds in the field although they will if such plants are eonserved in hay or silage. 

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