I've recently been diagnosed with elevated sugar levels and my doctor prescribed Metformin to help along with watching my diet, exercise etc. After a month of being on the medication, I wasn't satisfied with the results so I decided to start using Salacia by Dragon Herbs. After a week of using Salacia and Metformin together my fasting blood sugar started dropping. Now after almost 2 months of using both Salacia and Metformin my fasting sugar is under 118 ( big drop from 160 ), unless I overeat or not making the right choices. Since I haven't found any info on extended use, I plan to stop in about 2 weeks and stay off for a month or so to see if I need to go back. Overall I found Salacia to be very helpful. Hopefully beneficial for other people also.