Symptoms of opioid withdrawal

3 or more of the following symptoms are observed after the cessation/ reduction in opioid use or administration of a opioid antagonist after a period of opioid use.

1. Dysphoric mood

2. Nausea

3. Muscle arches

4. Lacrimation

5. Pupillary dilation, piloerection, or sweating

6. Diarrhea

7. Yawning

8. Fever

9. Insomnia