 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST] olimod, certain drugs to treat hepatitis C (ledipasvir/sofosbuvir, sofosbuvir). Many drugs besides amiodarone may affect the heart rhythm (QT prolongation), including dofetilide, pimozide, procainamide, quinidine, sotalol, macrolide antibiotics (such as clarithromycin, erythromycin), quinolone antibiotics (such as levofloxacin), among others. (See also Precautions section.) Other medications can affect the removal of amiodarone from your body, which may affect how amiodarone works. Examples include azole antifungals (such as itraconazole), cimetidine, cobicistat, protease inhibitors (such as fosamprenavir, indinavir), rifamycins (such as rifampin), saquinavir, St. John's wort, among others. Amiodarone can slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include clopidogrel, macitentan, phenytoin, certain "statin" drugs </s>