| Similarity | Rank | |
|---|---|---|
| BUTALBITAL | 0.949 | 50181 |
| FIORICET | 0.944 | 49676 |
| PERCOCET | 0.944 | 44796 |
| PROPOXYPHENE | 0.943 | 66758 |
| CODEINE | 0.942 | 30981 |
| VICODIN | 0.941 | 44698 |
| PHENERGAN | 0.941 | 67750 |
| XANAX | 0.940 | 44454 |
| CARISOPRODOL | 0.939 | 47824 |
| ULTRAM | 0.937 | 42384 |
| HYDROCODONE | 0.934 | 38109 |
| VALIUM | 0.934 | 43351 |
| FLEXERIL | 0.931 | 81212 |
| OXYCODONE | 0.931 | 46737 |
| TRAMADOL | 0.930 | 35975 |
| LORTAB | 0.930 | 43915 |
| PHOSPHATE | 0.927 | 78588 |
| ULTRACET | 0.925 | 92923 |
| CYCLOBENZAPRINE | 0.923 | 93247 |
| DARVON | 0.922 | 90925 |
| TEMAZEPAM | 0.921 | 65865 |
| METHADONE | 0.921 | 44502 |
| NORCO | 0.919 | 45727 |
| ZOFRAN | 0.919 | 75254 |
| PROVIGIL | 0.918 | 41795 |