How Does HCTZ Lower Blood Pressure?
Hydrochlorothiazide, often abbreviated HCTZ, is the most frequently prescribed diuretic, or “water pill” in the United States. According to the National Institutes of Health, it’s considered first-line therapy in the treatment of hypertension, or high blood pressure. This means it’s usually the first drug physicians prescribe to lower their patients’ blood pressure. Hydrochlorothiazide comes in tablet and capsule form. Its dosage ranges from 12.5mg to 50mg once daily.