Opioids are medications that relieve pain. They reduce the intensity of pain signals receiving to the brain and affect the brain areas those control emotions, which diminishes the effects of a painful stimulus. Medications that fall within this class include hydrocodone, oxycodone, morphine, codeine, and related drugs.
Opioids reduce the intensity of pain signals reaching the brain and affect those brain areas controlling emotion, diminishing the effects of a painful stimulus. Opioids can also produce drowsiness, depending upon the amount of drug taken, mental confusion, constipation, nausea and depress respiration. Pains that may not respond well to other pain medications, are treated by Opioids, are also used to treat moderate to severe pain.