Petiline

Petiline is a steroidal alkaloid discovered in Petilium raddeanum, acting as a selective antagonist of M cholinergic receptors. It exhibits anticholinergic effects by competitively blocking M cholinergic receptors, which includes reducing vagal effects on the heart, and also demonstrates central excitatory, cardiotonic, and antispasmodic actions. Petiline holds potential for research into diseases related to the cholinergic system, such as arrhythmias and intestinal spasms.