I have had a long running history of kidney stones. To no avail I...

I have had a long running history of kidney stones. To no avail I curbed my diet; but it didn't help much. The doctor noted that I was gettig high blood pressure readings when having the kidney stone attacks. When he found that my blood pressure was not returning to normal levels, he prescribed Maxide 25; which I have been taking for a number of years now. Since I have been taking the Maxide, I noted that I have not gotten a single kidney stone. I've even gone back to eating things that I was not supposed to eat; so that I would not get a stone. I'm still free of stones. Can you tell me what the reason is for this? Gino