| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Pipecolic Acids | 100 | + | |
| 2 | Fentanyl | 78 | + | |
| 3 | Piperidones | 23 | + | |
| 4 | Mepivacaine | 22 | + | |
| 5 | Domperidone | 18 | + | |
| 6 | Cyproheptadine | 17 | + | |
| 7 | Isonipecotic Acids | 14 | + | |
| 8 | Loperamide | 8 | + | |
| 9 | Ketanserin | 8 | + | |
| 10 | Cisapride | 5 | + | |
| 11 | Nipecotic Acids | 2 | + | |
| 12 | Phencyclidine | 2 | + |