My wife age is approx 46 yrs, she is taking over-l tab since last 12 yrs. There are no problem about her period. 2 years ago it observed that she is a high blood pressure i.e bp - 170/90. She taking tab amlosafe 3d (1 tab daily) since last 2 years by through a doctor opinion, at present her bp is normal i.e bp - 138/82, dt- 17.05.2019. I want to know how long she can take this over-l tab?