| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Indole Alkaloids | 100 | + | |
| 2 | Camptothecin | 69 | + | |
| 3 | Opiate Alkaloids | 46 | + | |
| 4 | Benzylisoquinolines | 21 | + | |
| 5 | Veratrum Alkaloids | 12 | + | |
| 6 | Xanthines | 6 | + | |
| 7 | Solanaceous Alkaloids | 4 | + | |
| 8 | Acridones | 3 | + | |
| 9 | Colchicine | 3 | + | |
| 10 | Swainsonine | 3 | + | |
| 11 | Betalains | 3 | + | |
| 12 | Benzophenanthridines | 3 | + | |
| 13 | Amaryllidaceae Alkaloids | 3 | + | |
| 14 | Emetine | 2 | + | |
| 15 | Tropanes | 2 | + | |
| 16 | Harringtonines | 1 | + | |
| 17 | Pyrrolizidine Alkaloids | 1 | + |