| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Opiate Alkaloids | 100 | + | |
| 2 | Indole Alkaloids | 42 | + | |
| 3 | Benzylisoquinolines | 40 | + | |
| 4 | Xanthines | 38 | + | |
| 5 | Solanaceous Alkaloids | 36 | + | |
| 6 | Ergot Alkaloids | 21 | + | |
| 7 | Tropanes | 12 | + | |
| 8 | Veratrum Alkaloids | 11 | + | |
| 9 | Colchicine | 11 | + | |
| 10 | Pyrrolizidine Alkaloids | 8 | + | |
| 11 | Benzophenanthridines | 7 | + | |
| 12 | Pilocarpine | 4 | + | |
| 13 | Ryanodine | 2 | + | |
| 14 | Aconitine | 1 | + | |
| 15 | Amaryllidaceae Alkaloids | 1 | + | |
| 16 | Camptothecin | 1 | + | |
| 17 | Arecoline | 1 | + | |
| 18 | Cinchona Alkaloids | 1 | + | |
| 19 | Emetine | 1 | + |