Answer;
-Opioid analgesics
Step-by-step explanation;
-Opioids are strong analgesics used in the relief of pain, both acute and chronic, and cancer and non-cancer related.
-Opioid drugs work by binding to opioid receptors in the brain, spinal cord, and other areas of the body. They reduce the sending of pain messages to the brain and reduce feelings of pain.
-Opioids are used to treat moderate to severe pain that may not respond well to other pain medications. However; some adverse effects of opioids as a class include: respiratory depression; nausea and vomiting; constipation; drowsiness and sedation; allergic reactions, itchiness and bronchospasm