| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Indole Alkaloids | 100 | + | |
| 2 | Harringtonines | 38 | + | |
| 3 | Camptothecin | 9 | + | |
| 4 | Benzylisoquinolines | 6 | + | |
| 5 | Emetine | 6 | + | |
| 6 | Amaryllidaceae Alkaloids | 5 | + | |
| 7 | Xanthines | 3 | + | |
| 8 | Betalains | 2 | + | |
| 9 | Veratrum Alkaloids | 2 | + | |
| 10 | Colchicine | 1 | + |