Hi there and welcome to the forum.
Is this your first experience with any meds to address blood glucose ?
Nobody on the forum can really comment on your dosage or medication prescription, but if you can give some general info - how long since diagnosis, current HbA1c - that kind of thing, there may be some general help we can give..
You may see from around the forum that many T2DM people here have been able to reverse their diabetes, with and without meds - you may find something useful here.
As for the effect of this med - it persuades your pancreas to produce more insulin, which will bring your blood glucose level down - so what you are seeing is around what is expected, in terms of dropping that level. I'm not sure what you are expecting as "normal" or what you are aiming for though, so I don't want to comment on the absolute numbers.