It's an alpha amylase inhibitor and alpha glucosidase inhibitor rolled into one drug which should prevent some of the carbs being broken down properly so they continue to ferment further down the digestive system over a longer time reaulting in a reduced carbohydrate absorption.
I've been taking a supplement called phase2 which is also an alpha amylase inhibitor but this stuff doesn't also inhibit the alpha glucosidase. I am convinved something which combines alpha amylase and alpha glucosidase inhibitors would be a lot more effective for both BG control and weight loss and I would like to try some out. My doctor is hesitant, however when I go to Thailand the next time I'm going to get some anyway and run a atest for a couple of months. I can buy it over the counter there and will talk to a local endocrinologist about this.
I don't over do my carbs anyway and have cut down a lot literally overnight since my diagnosis at the end of November 2009. I've been losing weight slowly but surely since then. Right now I've lost about 26-27 lbs in the last six months and it's still coming down on a weekly basis. I eat normally but slightly lesser quantities. I avoid carbs with carbs - like chip sandwich for example, or baked potato with beans, I'll use chilli + cheese instead. I do eat some biscuits and the occasional sweet but only when my blood sugar is quite low - like 4.5-6.0 and never within 3-5 hours of eating a meal.