| Similarity | Rank | |
|---|---|---|
| tranquilliser | 0.870 | 24145 |
| pain-killing | 0.866 | 64935 |
| barbiturate | 0.846 | 34844 |
| anti-depressant | 0.839 | 33508 |
| antihistamine | 0.836 | 51844 |
| sedative | 0.832 | 22484 |
| pethidine | 0.822 | 38241 |
| laxative | 0.818 | 20093 |
| analgesic | 0.818 | 24504 |
| painkiller | 0.812 | 21719 |
| morphine | 0.811 | 18319 |
| valium | 0.808 | 22141 |
| hay-fever | 0.808 | 93954 |
| medication | 0.807 | 8742 |
| naltrexone | 0.803 | 99591 |
| psychotropic | 0.802 | 40456 |
| cystitis | 0.800 | 25193 |
| largactil | 0.798 | 98248 |
| dihydrocodeine | 0.797 | 90308 |
| cross-addictive | 0.796 | 66394 |
| paracetamol | 0.795 | 19877 |
| sulfasalazine | 0.795 | 81993 |
| methadone | 0.793 | 27683 |
| pain-killer | 0.790 | 42554 |
| menopausal | 0.786 | 45393 |