| Similarity | Rank | |
|---|---|---|
| HYDROCODONE | 0.950 | 38109 |
| OXYCODONE | 0.945 | 46737 |
| VICODIN | 0.944 | 44698 |
| PERCOCET | 0.942 | 44796 |
| LORTAB | 0.938 | 43915 |
| METHADONE | 0.934 | 44502 |
| DARVON | 0.927 | 90925 |
| CARISOPRODOL | 0.927 | 47824 |
| LORCET | 0.927 | 78525 |
| OXYCONTIN | 0.926 | 53820 |
| VALIUM | 0.926 | 43351 |
| CODEINE | 0.920 | 30981 |
| PROPOXYPHENE | 0.918 | 66758 |
| MORPHINE | 0.917 | 61554 |
| XANAX | 0.917 | 44454 |
| ROHYPNOL | 0.917 | 62802 |
| TUSSIONEX | 0.914 | 70426 |
| BUTALBITAL | 0.911 | 50181 |
| ULTRAM | 0.911 | 42384 |
| IMITREX | 0.906 | 66252 |
| DIAZEPAM | 0.906 | 41276 |
| NORCO | 0.906 | 45727 |
| FIORICET | 0.903 | 49676 |
| CLONAZEPAM | 0.901 | 64424 |
| ADDERALL | 0.900 | 41836 |