| DB00193 | yes | agonist | Tramadol | approved|investigational | DB00295 | yes | agonist | Morphine | approved|investigational | DB00318 | yes | partial agonist | Codeine | approved|illicit | DB00321 | unknown | binder | Amitriptyline | approved | DB00327 | yes | agonist | Hydromorphone | approved|illicit | DB00333 | yes | agonist | Methadone | approved | DB00497 | yes | agonist | Oxycodone | approved|illicit|investigational | DB00504 | yes | partial agonist | Levallorphan | approved | DB00514 | unknown | agonist | Dextromethorphan | approved | DB00611 | yes | partial antagonist | Butorphanol | approved|illicit|vet_approved | DB00647 | yes | agonist | Dextropropoxyphene | approved|illicit|withdrawn | DB00652 | yes | antagonist | Pentazocine | approved|vet_approved | DB00704 | yes | antagonist | Naltrexone | approved|investigational|vet_approved | DB00708 | yes | agonist | Sufentanil | approved|investigational | DB00802 | yes | agonist | Alfentanil | approved|illicit | DB00813 | yes | agonist | Fentanyl | approved|illicit|investigational|vet_approved | DB00836 | yes | agonist | Loperamide | approved | DB00844 | yes | antagonist | Nalbuphine | approved | DB00854 | yes | agonist | Levorphanol | approved | DB00899 | yes | agonist | Remifentanil | approved | DB00904 | unknown | other/unknown | Ondansetron | approved | DB00913 | yes | agonist | Anileridine | approved|illicit | DB00921 | yes | partial agonist | Buprenorphine | approved|illicit|investigational|vet_approved | DB00956 | yes | agonist | Hydrocodone | approved|illicit | DB01081 | yes | agonist | Diphenoxylate | approved|illicit | DB01183 | yes | antagonist | Naloxone | approved|vet_approved | DB01192 | yes | agonist | Oxymorphone | approved|investigational|vet_approved | DB01209 | yes | agonist | Dezocine | approved | DB01221 | unknown | binder | Ketamine | approved|vet_approved | DB01227 | yes | agonist | Levomethadyl Acetate | approved | DB01433 | yes | agonist | Methadyl Acetate | approved|illicit | DB01439 | yes | agonist | 3-Methylthiofentanyl | experimental|illicit | DB01444 | yes | agonist | Dimethylthiambutene | experimental|illicit | DB01452 | yes | agonist | Heroin | approved|illicit | DB01466 | yes | agonist | Ethylmorphine | approved|illicit | DB01497 | yes | agonist | Etorphine | illicit|vet_approved | DB01535 | yes | agonist | Carfentanil | illicit|vet_approved | DB01548 | yes | antagonist | Diprenorphine | illicit|vet_approved | DB01565 | yes | agonist | Dihydromorphine | experimental|illicit | DB01571 | yes | agonist | 3-Methylfentanyl | illicit | DB05046 | unknown | NA | V1003 | investigational | DB05492 | unknown | NA | Epicept NP-1 | investigational | DB05509 | unknown | NA | LI-301 | investigational | DB06204 | yes | agonist | Tapentadol | approved | DB06274 | yes | antagonist | Alvimopan | approved | DB06738 | yes | agonist | Ketobemidone | approved | DB06800 | yes | antagonist | Methylnaltrexone | approved | DB09049 | yes | antagonist | Naloxegol | approved | DB09089 | yes | agonist | Trimebutine | approved | DB09272 | yes | agonist | Eluxadoline | approved | DB09396 | yes | agonist | Propoxyphene napsylate | approved |