Answer
Apr 22, 2026 - 02:14 PM
There is a risk of drug interactions with certain prescription (Rx) medications and over-the-counter (OTC) supplements, including fingolimod, calcium channel blockers like diltiazem and verapamil, amiodarone, dofetilide, flecainide, ketoconazole, pimozide, procainamide, quinidine, sotalol, macrolide antibiotics like clarithromycin and erythromycin, quinolone antibiotics like sparfloxacin, phenytoin, rifampin, and saquinavir. Understanding drug interactions is crucial to prevent potentially serious side effects or reduced effectiveness of your medication.
