Hello, firstly I will answer your second doubt
simvastatin and rozavel belong to same group of drugs called statin which try to decrease LDL
cholesterol. simvastatin has some extra effects which rozavel doesn't have like NO donating property.
Secondly, the indications for starting statin are clear now a days. if you have
diabetes and age less than 65, station need s to be started if cholesterol is in the range of 70-150. if u don't have any comorbidity( diabetes ,
hypertension, atherosclerotic
cardiovascular disease like
heart attack or stroke) LDL >190 needs treatment.
if only hypertension LDL> 100 needs treatment.
if diabetes and hypertension together > 70 needs treatment. this is from mainly ATP 3 AND AHA recommendations. there is ASCVD risk calculator, if risk is more than 7.5 we need to start meds.
we have seen many patients using stations lifelong with minimal side effects in view of risk benefit ratio. there are some reports suggesting increased risk of diabetes with statins but in view of risk benefit ratio we Ned to continue them.
I suppose from question that you are nil premorbid , 57 yr female then its better to repeat fasting
lipid profile and have ECG, TMT once based on all these reports we can decide further management.