Experiencing Nausea, Muscle Pain After Taking Oxycodone For Few Month. Started Cymbalta. Underlying Cause?
Oxycodone when stopped suddenly results in the withdrawal symptoms you are experiencing - nausea, vomiting, muscle pain, sweating, diarrhea, and dysphoria (unpleasant feeling).
These withdrawal symptoms will last only for few days. Also, when taken for analgesic purposes, Oxycodone rarely results in addiction.
Cymbalta (Duloxetine) is very useful in the treatment of severe neuropathic pain (pain due to nerve damage). It is an antidepressant and has been approved by FDA for the treatment of neuropathic pain.
The insomnia you are suffering from is due to Cymbalta and not due to Oxycodone. Cymbalta can cause dizziness if stopped suddenly (discontinuation syndrome).
Warm regards. Hope this helps. Please let me know if I can assist you further.