| Similarity | Rank | |
|---|---|---|
| METHADONE | 0.956 | 44502 |
| OXYCODONE | 0.950 | 46737 |
| PROPOXYPHENE | 0.947 | 66758 |
| PERCOCET | 0.945 | 44796 |
| DARVON | 0.942 | 90925 |
| HYDROCODONE | 0.941 | 38109 |
| VICODIN | 0.937 | 44698 |
| OXYCONTIN | 0.937 | 53820 |
| CODEINE | 0.937 | 30981 |
| VALIUM | 0.935 | 43351 |
| LORTAB | 0.934 | 43915 |
| XANAX | 0.933 | 44454 |
| TEMAZEPAM | 0.931 | 65865 |
| CARISOPRODOL | 0.930 | 47824 |
| DIAZEPAM | 0.928 | 41276 |
| ALPRAZOLAM | 0.928 | 54478 |
| CLONAZEPAM | 0.923 | 64424 |
| PHENERGAN | 0.922 | 67750 |
| ADDERALL | 0.920 | 41836 |
| PHOSPHATE | 0.918 | 78588 |
| PERCODAN | 0.917 | 70179 |
| LORCET | 0.915 | 78525 |
| BUTALBITAL | 0.914 | 50181 |
| DIETHYLPROPION | 0.913 | 60727 |
| TENUATE | 0.912 | 53501 |