| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Aminopyridines | 100 | + | |
| 2 | Dihydropyridines | 93 | + | |
| 3 | Pyridinium Compounds | 49 | + | |
| 4 | Nicotine | 38 | + | |
| 5 | Quinolinic Acids | 38 | + | |
| 6 | Nicotinic Acids | 37 | + | |
| 7 | Picolines | 27 | + | |
| 8 | Pheniramine | 27 | + | |
| 9 | 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine | 24 | + | |
| 10 | Carbolines | 5 | + |