tokens: The patient was taking 80 mg simvastatin at bedtime ( initiated 27 days earlier ); amiodarone at a dose of 400 mg daily for 7 days , then 200 mg daily ( initiated 19 days earlier ); and 400 mg atazanavir daily ( initiated at least 2 years previously ). Laboratory evaluation revealed 66 , 680 U / L creatine kinase , 93 mg / dL blood urea nitrogen , 4 .