| Active principles | Rating | Bibliogr. | Expand | |
|---|---|---|---|---|
| 1 | Phentolamine | 100 | + | |
| 2 | Imidazolines | 83 | + | |
| 3 | Imidazolidines | 70 | + | |
| 4 | Losartan | 69 | + | |
| 5 | Histamine | 55 | + | |
| 6 | Creatinine | 40 | + | |
| 7 | Idazoxan | 31 | + | |
| 8 | Levamisole | 27 | + | |
| 9 | Biotin | 20 | + | |
| 10 | Cimetidine | 18 | + | |
| 11 | Etomidate | 18 | + | |
| 12 | Ondansetron | 12 | + | |
| 13 | Nitroimidazoles | 6 | + | |
| 14 | Trimethaphan | 5 | + | |
| 15 | Methimazole | 5 | + | |
| 16 | Histidinol | 5 | + | |
| 17 | Carbimazole | 4 | + | |
| 18 | Dacarbazine | 3 | + | |
| 19 | Enoximone | 3 | + | |
| 20 | Dexmedetomidine | 2 | + |