Triacetonamine hydrochloride (2,2,6,6-Tetramethyl-4-piperidone hydrochloride) is an orally available centrally acting depressant compound that can be used as an intermediate for the synthesis of pharmaceutical products and pesticides, and can induce acute liver failure (ALF) in rats.

TriacetonaMine (Vincubine) protects the activitis of superoxide dismutase(SOD) and creatine phos-phate kinase (CPK); it also inhibits CaCl2 induced agglomeration of thromocyte. Triacetonamine can improve the constructile function of heart mus-cles of acute anemia and decrease the content of malodialdehyde (MDA) in the heart muscles.

Calyxamine B has inhibitory activity on acetylcholinesterase, the effect is comparable to the natural inhibitors.