Diuretics are one of the most commonly used antihypertensive medications.
They are classified into three categories: thiazides, loop diuretics, and potassium-sparing diuretics.
They primarily work by excreting sodium, reducing extracellular fluid volume, and decreasing peripheral resistance.
The antihypertensive effect is relatively steady, gradual, and long-lasting, making them suitable for treating mild to moderate hypertension.
Commonly prescribed medications include:
1. hydrochlorothiazide 12.5 mg, taken once or twice daily;
2. triamterene 50 mg, taken once or twice daily;
3. amiloride 5 - 10 mg, taken once daily;
4. furosemide 20 - 40 mg, taken once or twice daily;
5. indapamide 1.25 - 2.5 mg, taken once daily.