Hi & Welcome.
It's not safe to take
Bupropion and
Venlafaxine while on
Diltiazem.
If taken together it may result in the following harmful interactions:
1. The antidepressant drug Bupropion may rarely cause seizures, & taking it with other medications that can also cause seizures such as Venlafaxine may increase that risk.
You may be more susceptible if you are elderly, undergoing alcohol or drug withdrawal or have a history of seizures.
You need to consult your treating doctor as he/she may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications.
2. The blood pressure (BP) lowering medication Diltiazem and Bupropion may have additive effects in lowering your BP. You may experience headache,
dizziness, light headedness,
fainting, and/or changes in pulse or
heart rate. These side effects are most likely to be seen at the beginning of treatment, following a dose increase, or when treatment is restarted after an interruption.
3. Ditiazem may also increase the blood levels and effects of Venlafaxine.
Contact your doctor if your condition changes or you experience increased side effects. You may need a dose adjustment or more frequent monitoring by your doctor to safely use both medications.
Hope I could answer your queries.
Best regards.
A feed back is appreciated.