Perindopril/indapamide

Perindopril/indapamide is a combination medication used in the treatment of hypertension (high blood pressure) and stable coronary artery disease. It contains two active ingredients: perindopril, an angiotensin-converting enzyme inhibitor (ACE inhibitor), and indapamide, a thiazide diuretic.

Etymology

The name "perindopril" is derived from the Latin words per, meaning "through", and indap, meaning "to press". The "pril" suffix is common to all ACE inhibitors. The name "indapamide" is derived from the chemical structure of the compound, which includes an indane ring and a sulfamoyl group (amide).

Pharmacology

Perindopril works by inhibiting the angiotensin-converting enzyme, which plays a crucial role in the renin-angiotensin system, a hormone system that regulates blood pressure and fluid balance. By blocking this enzyme, perindopril reduces the production of angiotensin II, a potent vasoconstrictor, thereby lowering blood pressure.

Indapamide, on the other hand, works by inhibiting the reabsorption of sodium in the kidneys, leading to increased excretion of sodium and water in the urine. This reduces the volume of fluid in the blood vessels, which helps lower blood pressure.

Clinical Use

Perindopril/indapamide is used in the treatment of hypertension and stable coronary artery disease. It is typically prescribed when monotherapy with either perindopril or indapamide is not sufficient to control blood pressure. The combination of these two drugs provides a synergistic effect, allowing for lower doses of each drug and reducing the risk of side effects.

Side Effects

Common side effects of perindopril/indapamide include dizziness, headache, cough, fatigue, and gastrointestinal disturbances such as nausea and diarrhea. Less common but more serious side effects include hypotension (low blood pressure), hyperkalemia (high potassium levels in the blood), and renal impairment.

See Also

• Angiotensin-converting enzyme inhibitor
• Thiazide diuretic
• Hypertension
• Coronary artery disease

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