| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Pyridones | 100 | + | |
| 2 | Picolines | 82 | + | |
| 3 | Nicotinic Acids | 77 | + | |
| 4 | 2-Pyridinylmethylsulfinylbenzimidazoles | 70 | + | |
| 5 | Dihydropyridines | 64 | + | |
| 6 | Pyridinium Compounds | 57 | + | |
| 7 | Aminopyridines | 54 | + | |
| 8 | Nicotine | 42 | + | |
| 9 | Pheniramine | 41 | + | |
| 10 | Betahistine | 36 | + | |
| 11 | Picolinic Acids | 35 | + | |
| 12 | Metyrapone | 29 | + | |
| 13 | 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine | 28 | + | |
| 14 | Carbolines | 26 | + | |
| 15 | Quinolinic Acids | 19 | + | |
| 16 | Nicotinyl Alcohol | 9 | + | |
| 17 | Thienopyridines | 6 | + |