atropine deadly nightshade atropa belladonna alkaloid molecule. medicinal drug and poison also found in jimson weed datura.

acetylcholine alkaloid antidote atomic atoms atropa atropin atropine belladonna chemical chemistry composition compound datura deadly drawing eye flat formula hyoscyamine icon jimson line mandragora mandrake molecular molecule muscarine muscarinic mydriasis mydriatic neurotransmitter nightshade officinarum ophthalmic ophthalmology parasympathetic poison poisonous pupil racemic receptor skeletal solanaceae stramonium structure toxic toxin vector weed