went to va for a physical and found I had high blood pressure, she gave me chlorthalidone 25 mg and said to cut in half, did that for a couple days and blood pressure hadn t come down any at all, for the past two days I have ate the whole pill and blood pressure still hasn t changed hardly at all. if I set for a 1/2 hr or so and check it comes down a couple of numbers but not much, supposed to go back the 10th of December , should I wait or call them and tell them its not working.