Tell your doctor about all your other medicines, especially:
cimetidine, fluvoxamine, nefazodone, St John's wort;
antibiotic or antifungal medicine;
antiviral medicine to treat hepatitis or HIV/AIDS;
heart or blood pressure medicine--amiodarone, digoxin, nicardipine, procainamide, propranolol;
seizure medicine--carbamazepine, phenytoin; or
tuberculosis medicine--isoniazid, rifampin.
This list is not complete. Other drugs may affect lidocaine, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.
 Xylocaine-MPF drug interactions (more detail)
