Dear Cindy,
DiureticsDiuretic ap-es are a mainstay of many thoughtful anti-hypertensive regimens. I am not at all certain that diuretics will reduce the incidence of heart failure. However, if one suffers from congestive heart failure, diuretics can greatly assist in this condition.
In your father’s particular case of hypertension, a diuretic is an excellent choice as therapy. Other medicines are available with equal or better effectiveness. None has been shown in controlled clinical trials to reduce the incidence of heart failure, however.
Have a nice day.