- MScontin, Oramorph, Sevredol - Generic: Morphine (opioid receptor agonist)
- Demerol - Generic: Meperidine (opioid receptor agonist)
- Dolophine - Generic: Methadone (Levomethadone (the R enantiomer) is a opioid receptor agonist)
- Actiq, Duragesic, Fentora - Generic: Fentanyl (opioid receptor agonist)
- Narcan - Generic: Naloxone (competitive opioid receptor antagonist)
- ReVia - Generic: Naltrexone (competitive opioid receptor antagonist)
- Entereg - Generic: Alvimopan (opioid receptor antagonist)
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