Moderate
Probable
説明
Carbamazepine significantly reduces venlafaxine plasma concentrations through CYP3A4 induction, potentially reducing antidepressant efficacy.
機序
Carbamazepine induces CYP3A4 and CYP2C19, which are involved in venlafaxine metabolism, accelerating its clearance and reducing plasma levels.
臨床的意義
Sub-therapeutic venlafaxine levels may lead to depression relapse or inadequate pain control in patients using it for neuropathic pain.
対処法
Monitor clinical response; venlafaxine dose increase may be required; consider an antidepressant less affected by CYP3A4 induction.