Oxycodone and Carbamazepine (Tegretol CR 400 mg): interaction and safety
This source-based reference is not a personal treatment recommendation. The relevance and management of an interaction depend on the exact products, route, dose and clinical situation.
Interaction mechanism
CYP3A4 induction can reduce opioid exposure; stopping the inducer can reverse this effect.
Clinical significance and safety
Carbamazepine can induce CYP3A metabolism and lower oxycodone exposure, potentially reducing its effect or causing withdrawal in a physically dependent person; stopping the inducer can increase opioid exposure again. The prescriber should review the combination and monitor for the effects described; do not adjust the opioid or the other medicine independently.
Using this information
This is a source-based reference record, not a recommendation to combine, stop or change medicines. A missing interaction record does not establish safe use. A qualified healthcare professional should consider the exact products, doses, other medicines and individual health circumstances.