Hyocyamus niger

Plants from botanic family Slanaceae Atropa belladonna, Atropa acminata, Atropa boetica, Hyocyamus niger Chloroform... 

The combination of herbal sedatives such as valerian (V, officinalis), passion flower (Passiflora species), and anticholinergic Solanaceae (Atropa belladonna, Datura stromonium, Hyocyamus niger, and Mandragora offici-narum) with alcohol or antihistamines can potentiate the effects of antidepressants, antihistaminics, and antispasmodics, causing drowsiness and obtunding the ability to use machinery (D Arcy, 1993 De Smet et al., 1996). 

Large changes in the amounts of atropine [a mixture of (/ )- and (S)-hyoscyamine] present in Atropa belladonna occur diumally and seasonally (Waller and Nowacki, 1978). The amount of atropine in leaves is greatest at about 6 00 P.M., whereas the atropine concentration of the fruits peaks at about 4 00 p.m. The smallest amount of atropine in the leaves occurs at 10 00 a.m. (Waller and Nowacki, 1978). Although undifferentiated calli of this species do not produce hyoscyamine (18), production resumes when roots form on the callus. Thus, the accumulation of this alkaloid seems to be developmentally regulated. Root cultures of Hyocyamus niger also produce hyoscyamine (Flores et al., 1987). 

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See also in sourсe #XX -- [ ]

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