If you stop your opioid pain medications suddenly, you may get withdrawal symptoms. Withdrawal can be difficult, but it’s not likely to cause harm to your body. Symptoms can include severe anxiety, restlessness, nausea, diarrhea, muscle pain, or insomnia.
If you’ve been taking a benzodiazepine such as Xanax, Valium, or Ativan for a long time and stop suddenly, you may have more severe, even life-threatening, problems.
If your pain or withdrawal symptoms become severe, go to the emergency room of your local hospital or an urgent care clinic.