Before you begin treatment with Biaxin, be sure to discuss the following with your doctor:, Any prescription and over-the-counter medications you take, Your allergies, Your health history and medical problems, Whether or not you are pregnant or breastfeeding, Biaxin may cause elevated liver enzymes and liver inflammation., Biaxin may cause a serious heart rhythm disorder called QT prolongation, especially in patients with abnormal electrolytes, low heart rate, or in patients taking Class IA (quinidine, procainamide) or Class III (dofetilide, amiodarone, sotalol) antiarrhythmic medications, or in patients taking other medications that can prolong the QT interval., Baixin may cause an intestinal infection called Clostridium difficile (C. diff)., Biaxin may worsen or cause symptoms of myasthenia gravis, an autoimmune disorder that leads to muscle weakness., Pregnant women should not take Biaxin unless there is no other appropriate therapeutic option. Biaxin may cause harm to an unborn fetus. Any prescription and over-the-counter medications you take, Your allergies, Your health history and medical problems, Whether or not you are pregnant or breastfeeding
