It’s important to tell your MS healthcare team about any other medicines or supplements that you’re taking or have recently taken, including: • Prescription medicines • Over-the-counter medicines • Vitamins • Herbal supplements. Using ZEPOSIA with other medicines can cause serious side effects. Especially tell your MS healthcare team if you take or have taken medicines such as: • Medicines that affect your immune system, such as alemtuzumab • Medicines to control your heart rhythm (also called antiarrhythmics), or heartbeat • CYP2C8 inducers such as rifampin • CYP2C8 inhibitors such as gemfibrozil (medicine to treat high fat in your blood) • Opioids (pain medicine) • Medicines to treat depression • Medicines to treat Parkinson's disease • Medicines to control your heart rate and blood pressure (beta blocker medicines and calcium channel blocker medicines).