Hi fitzland,
Melabic is well known in the diabetes field, both here and in the States, as one of the biggest scams!!
It is typical of several "supplements" that are targeted at diabetics, but they all have two things in common - they are extremely expensive and they will do absolutely nothing for your diabetes. The owner ought to be locked up and the keys thrown away, but unfortunately the authorities can't touch her because there is nothing in the pills that will actually harm you and the stuff is not claimed to be a medical treatment.
Please don't waste your money.