| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Dihydropyridines | 100 | + | |
| 2 | Nicotinic Acids | 74 | + | |
| 3 | 2-Pyridinylmethylsulfinylbenzimidazoles | 62 | + | |
| 4 | Betahistine | 56 | + | |
| 5 | Aminopyridines | 50 | + | |
| 6 | Picolines | 50 | + | |
| 7 | Pyridones | 43 | + | |
| 8 | Doxylamine | 42 | + | |
| 9 | Nicotine | 24 | + | |
| 10 | Isonicotinic Acids | 20 | + | |
| 11 | Carbolines | 14 | + | |
| 12 | Pyridinium Compounds | 13 | + | |
| 13 | Tolperisone | 4 | + | |
| 14 | Pheniramine | 3 | + | |
| 15 | Thienopyridines | 1 | + |