Withdrawal syndrome consists of a predictable group of signs and symptoms resulting from abrupt removal of, or a rapid decrease in the regular dosage of, a psychoactive substance. The syndrome is often characterized by over activity of the physiological functions that were suppressed by the drug and/or depression of the functions that were stimulated by the drug. In other words, opposite of what the drug did. If the drug suppressed depression then the person would be depressed while in withdrawal. If the substance suppressed pain then the person will experience pain while in withdrawal.
Withdrawal from opioids can be severe and excruciating. Withdrawal generally begins between 4 to 72 hours after the last opioid use (depending on dose and opioid), The symptoms are both physical and emotional and include: dilated pupils, goose bumps, watery eyes, runny nose, yawning, loss of appetite, tremors, panic, chills, nausea, vomiting, muscle cramps, insomnia, stomach cramps, diarrhea, shaking, chills or profuse sweating, depression, irritability, jitters, and increased sensitivity to pain.
Withdrawal is a symptom of brain adaptations caused by some substances. As someone takes more and more of an opioid they increase their tolerance and require more and more to achieve the same effect. The level of tolerance where the body can no longer naturally compensate for the absence of the substance is called physical dependence. Withdrawal is a symptom of physical dependence. If you are not physically dependent on a substance you will not experience withdrawal from it. To achieve a comfortable transition off a medication you have become physically dependent on requires matching your taper off of the drug with your brain's ability to adapt to each decrease. Too fast will cause discomfort.
To suppress the debilitating symptoms of cravings and withdrawal, enabling the patient to engage in therapy, counseling and support, so they can implement positive long-term changes in their lives which develops into the new healthy patterns of behavior necessary to achieve sustained addiction remission. - explain -