| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Picolines | 100 | + | |
| 2 | Aminopyridines | 51 | + | |
| 3 | Quinolinic Acids | 50 | + | |
| 4 | Isonicotinic Acids | 35 | + | |
| 5 | Dihydropyridines | 23 | + | |
| 6 | Carbolines | 20 | + | |
| 7 | Nicotinic Acids | 19 | + | |
| 8 | Pyridones | 14 | + | |
| 9 | Nicotine | 8 | + | |
| 10 | Triprolidine | 6 | + | |
| 11 | Metyrapone | 5 | + | |
| 12 | Betahistine | 4 | + |