Avoid becoming overheated or dehydrated during exercise and in hot weather. Because of the potential fall in blood pressure in these patients, therapy should be started under very close medical supervision. This medication also reduces swelling fluid retention edema seen with conditions such as congestive heart failure, liver disease, or kidney disease. If it is almost time for your next dose, skip the missed dose and take the medicine at the next regularly scheduled time. Impaired Renal Function: DYAZIDE is contraindicated in patients hydrochlorothiazide online seuraavana paivana with anuria, acute and chronic renal insufficiency or significant renal impairment. For hydroflumethiazide For oral dosage form tablets To lower the amount of water in the body: Adults to 100 milligrams mg one or two times day.