Isovoacristine
Isovoacristine is an ibogan-type indole alkaloid, primarily isolated from plants of the Tabernaemontana genus such as Tabernaemontana calcarea, Tabernaemontana divaricata, and Tabernaemontana laurifolia. Is has anticholinergic and antihistaminic properties. It also has demonstrated cytotoxic effects against the A2780 ovarian cancer cell line.