Hello dear..i have gone through your post in which you have asked about the purpose of taking the tablet G-Reg Sr-500.
G-Reg Sr-500 is basically an anti diabetic medication.
And it is also given to cases suffering from infertility
due to Polycystic Ovarian Disease(as the name suggests, multiple cysts
are formed in the ovary which can lead to infertility)
So..the medication prescribed by your Doctor is correct.
One thing you need to make sure that if your blood sugar levels are within normal limits, then this tablet may cause hypoglycemia
...so have something sweet after taking your tablet.
Other than this, it does not have any significant side effects.
And it has shown very good results.
Wishing you Good Health.