| Similarity | Rank | |
|---|---|---|
| nitroglycerin | 0.887 | 57416 |
| doxazosin | 0.867 | 81664 |
| PDE5 | 0.841 | 36875 |
| tamsulosin | 0.837 | 94257 |
| priapism | 0.830 | 70559 |
| cimetidine | 0.822 | 99443 |
| Flomax | 0.821 | 81044 |
| Vardenafil | 0.818 | 62777 |
| angina | 0.812 | 31116 |
| PDE-5 | 0.812 | 59128 |
| ritonavir | 0.810 | 81188 |
| Levitra | 0.810 | 16011 |
| ketoconazole | 0.809 | 56652 |
| nitrates | 0.807 | 32715 |
| vardenafil | 0.807 | 24395 |
| Tadalafil | 0.806 | 37951 |
| Revatio | 0.805 | 93669 |
| tadalafil | 0.804 | 13308 |
| citrate | 0.802 | 18873 |
| erectile | 0.801 | 8147 |
| vasodilator | 0.800 | 91177 |
| perscription | 0.799 | 40286 |
| hydrochlorothiazide | 0.798 | 66568 |
| phenytoin | 0.796 | 73509 |
| itraconazole | 0.794 | 83394 |