Well, Eddie, all I can say is your pharma drug and your bitter melon are both working on your pancreas to produce insulin, not DP itself. There is a very important distinction to be made there. The end result is always going to be insulin, but if people want to chug vinegar, they should knock themselves out.

EDIT: Actually, there is one thing that will work directly on DP and that is red wine. It tends to make the liver sluggish and it is the liver that is causing the DP, not the diabetes.