How long before hydrochlorothiazide works? My blood pressure was just a little high, so my doctor put me on just hydrochlorothiazide to see if it will work without other blood pressure drugs. How long before my blood pressure will go down?
Each . Each response is very individual but i usually like to wait at least several weeks to a month to see how diuretics affect blood pressure, sometimes longer. Typically each agent you use for blood pressure lowering will lower your BP by about 10 points or so. Good BP control is a long term project, and the goal is to prevent events (stroke, heart attack) way off in the future.