| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Nicotinic Acids | 100 | + | |
| 2 | Picolines | 35 | + | |
| 3 | Pyridones | 23 | + | |
| 4 | Aminopyridines | 18 | + | |
| 5 | Pyridinium Compounds | 7 | + | |
| 6 | 2-Pyridinylmethylsulfinylbenzimidazoles | 7 | + | |
| 7 | Pheniramine | 5 | + | |
| 8 | Metyrapone | 3 | + | |
| 9 | Nicotine | 3 | + | |
| 10 | Picolinic Acids | 2 | + | |
| 11 | Isonicotinic Acids | 2 | + | |
| 12 | Carbolines | 2 | + | |
| 13 | Dihydropyridines | 1 | + |