| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Tachykinins | 100 | + | |
| 2 | Vasopressins | 90 | + | |
| 3 | Dipeptides | 68 | + | |
| 4 | Angiotensins | 58 | + | |
| 5 | Thyrotropin-Releasing Hormone | 43 | + | |
| 6 | Glutathione | 28 | + | |
| 7 | Bradykinin | 19 | + | |
| 8 | Pentagastrin | 13 | + | |
| 9 | Gonadotropin-Releasing Hormone | 8 | + | |
| 10 | Delta Sleep-Inducing Peptide | 3 | + |