| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Nicotinic Acids | 100 | + | |
| 2 | Picolinic Acids | 50 | + | |
| 3 | 2,2'-Dipyridyl | 42 | + | |
| 4 | Picolines | 28 | + | |
| 5 | Pyridinium Compounds | 20 | + | |
| 6 | Aminopyridines | 19 | + | |
| 7 | Dihydropyridines | 11 | + | |
| 8 | 2-Pyridinylmethylsulfinylbenzimidazoles | 7 | + | |
| 9 | Isonicotinic Acids | 3 | + | |
| 10 | Pyridones | 3 | + | |
| 11 | Nicotine | 2 | + | |
| 12 | Carbolines | 1 | + |