ACHE and Alzheimer disease: For instance, galantamine is an anticholinesterase (AchE) inhibitor drug used for the treatment of Alzheimer’s disease, originally isolated from several plants including Galanthus nivalus, bulbs and flowers of Galanthus caucasicus, Galanthus woronowii and related genera like Narcissus, Leucojum and Lycoris including Lycoris radiata (Olin and Schneider 2002).