Panflox Sparfloxacin Terfenadine
MajorTaking Sparfloxacin with terfenadine can increase the QTc interval or cause Torsade de pointes.
These medicines can affect each other in a serious way. Do not start taking them together unless your doctor has said it is OK. If you already take both, do not stop either one on your own: speak to your doctor or pharmacist soon.