| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Opiate Alkaloids | 100 | + | |
| 2 | Indole Alkaloids | 74 | + | |
| 3 | Xanthines | 48 | + | |
| 4 | Tropanes | 36 | + | |
| 5 | Benzylisoquinolines | 29 | + | |
| 6 | Solanaceous Alkaloids | 26 | + | |
| 7 | Ergot Alkaloids | 16 | + | |
| 8 | Camptothecin | 14 | + | |
| 9 | Cinchona Alkaloids | 13 | + | |
| 10 | Colchicine | 9 | + | |
| 11 | Aconitine | 6 | + | |
| 12 | Pilocarpine | 4 | + | |
| 13 | Amaryllidaceae Alkaloids | 4 | + | |
| 14 | Harringtonines | 4 | + | |
| 15 | Veratrum Alkaloids | 4 | + |