Indapamide & Perindopril combination is indicated in essential hypertension.
Combined antihypertensive preparations
Perindopril is a nonsulphydryl ACE inhibitor used in the treatment of hypertension. Following oral administration, perindopril is rapidly hydrolysed to perindoprilat, its principal active metabolite. ACE catalyses the conversion of angiotensin I to the vasoconstrictor substance, angiotensin II. Angiotensin II also stimulates aldosterone secretion by the adrenal cortex. Inhibition of ACE activity leads to decreased levels of angiotensin II, thereby resulting in decreased vasoconstriction and decreased aldosterone secretion. The latter change may result in a small increase in serum potassium. Decreased levels of angiotensin II and the accompanying lack of negative feedback on renal renin secretion results in increases in plasma renin activity. Perindopril administration may interfere with the degradation of the vasodepressor peptide bradykinin. It is not known whether this effect contributes to the therapeutic activity of perindopril. The mechanism through which perindopril lowers BP appears to result primarily from suppression of the RAAS.
Indapamide is a sulphonamide derivative with an indole ring, pharmacologically related to the thiazide group of diuretics. Indapamide inhibits the reabsorption of sodium in the cortical diluting segment. It increases the urinary excretion of sodium and chlorides and, to a lesser extent, the excretion of potassium and magnesium, thereby increasing urine output and having an antihypertensive action.
Adult: One tablet daily, preferably to be taken in the morning and before a meal. Elderly patients: Normal dosage. Renal failure: Creatinine clearance (CrCl) >30 ml/min: No dosage modification. Creatinine clearance (CrCl) <30 ml/min: Treatment contraindicated.
Concomitant use of antihypertensive & antipsychotic drug may potentiate hypotensive effects and NSAIDs may reduce the antihypertensive effect. ARB and Potassium Sparing diuretics may cause hyperkalemia.
Absolute: Known allergy to perindopril Erbumine, indapamide, or sulfonamides; history of Quincke's edema linked to previous ACE inhibitor therapy; severe renal failure; serious liver disorder; hypokalemia; pregnancy; lactation. Relative: Combination therapy with lithium, potassium salts, potassium-sparing diuretics, and certain medicines which can cause heart rhythm disorders.
Asthenia, dizziness, headache, mood swings and/or sleep disturbances, cramps, hypotension, allergic reactions, skin rashes, gastrointestinal disorders, dry cough, dry mouth, risk of dehydration in the elderly and in patients suffering from heart failure; changes in blood test results may occur.
There is positive evidence of human fetal risk based on adverse reaction data from investigational or marketing experience or studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks. Animal reproduction studies have failed to demonstrate a risk to the fetus and there are no adequate and well-controlled studies in pregnant women OR Animal studies have shown an adverse effect, but adequate and well-controlled studies in pregnant women have failed to demonstrate a risk to the fetus in any trimester.
Symptoms include hypotension, nausea, vomiting, cramps, dizziness, sleepiness mental confusion, oliguria which may progress to anuria. Salt and water disturbances (low sodium levels, low potassium levels) may also occur. Gastric lavage or administration of activated charcoal may be used to remove the ingested drug. Monitor and maintain fluid and electrolyte balance.
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