| Oxycodone | An opioid used in the management of moderate to severe pain. |
| Dihydrocodeine | An opioid analgesic agent used for the management of pain severe enough to require an opioid analgesic and for which alternative treatments are inadequate. |
| Nicomorphine | Not Annotated |
| Morphine | An opioid agonist used for the relief of moderate to severe acute and chronic pain. |
| Codeine | An opioid analgesic used to treat moderate to severe pain when the use of an opioid is indicated. |
| Hydromorphone | An opioid analgesic used to treat moderate to severe pain when the use of an opioid is indicated. |
| Opium | A medication used to treat moderate to severe pain. |
| Naltrexone | A narcotic antagonist used in opioid overdose. |
| Naloxone | An opioid receptor antagonist used to rapidly reverse an opioid overdose. Also included in some drug formulations as an abuse deterrent to prevent injection. |