Highly toxic mixture of amorphous alkaloids from Aconitum napellus L., Ranunculaceae. Contains aconitine, mesaconitine, hypaconitine, neopelline, l-ephedrine, sparteine, neoline and napelline. Ref: Rogers, Freudenberg, Ber. 70, 349 (1937); eidem, J. Am. Chem. Soc. 59, 2572 (1937). Toxicity data: Munch, J. Am. Pharm. Assoc. 18, 17 (1929).