Hi, everybody:

I would like to know if there can be interactions between medications and vitamins / minerals from foods, drinks, and pills, that would cause either the medications or vitamins / minerals to become ineffective.

My medications are:
-Duragesic (fentanyl)
-MSIR (morphine sulfate)
-Tambocor (flecaïnide)
-Inderal (propranolol)
-Keppra (levetiracetam)
-Klonopin (clonazepam)
-Actonel.

Thanks for your answers.