high blood pressure
"I have been taking this medicine since age 46.  I am now 60. Although I have had a steadily increasing dose over the years (now 20/25 twice/day), my pressure has been controlled from an initial 155/90 to its present 125/80.  I have had virtually no side effects, although due to the high dosage of hydrochlorothiazide, I have to be careful not to overdue the sun exposure."