<prompt> Answer this question truthfullyWhat is the primary method of preventing coronary heart disease?  <response>: <reason> Simvastatin drug interactions include the following:Simvastatin 10 mg should be the maximum dose when prescribed with:Amiodarone Verapamil DiltiazemSimvastatin 20 mg should be the maximum dose when prescribed with:Amlodipine Norvasc Ranolazine Ranexa 