Humantenidine 是一种吲哚生物碱，是从 Gelsemium sempervirens 中分离出来的。

Angustifoline has activity against gram-positive bacteria. It inhibits human colon cancer cell growth by inducing autophagy along with mitochondrial-mediated apoptosis, suppression of cell invasion and migration and stimulating G2/M cell cycle arrest.

Indirubin 是一种有效的细胞周期蛋白依赖性激酶和 GSK-3β 抑制剂，IC50 约为 5 uM 和 0.6 uM。