Vol 3, No 1 (1999)
REVIEV
Published online: 2000-03-08
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Irbesartan. A Review of its Pharmacodynamic and Pharmacokinetic Properties and Therapeutic Use in the Management of Hypertension

Jane C. Gillis, Anthony Markham
Nadciśnienie tętnicze 1999;3(1):35-51.
Vol 3, No 1 (1999)
REVIEV
Published online: 2000-03-08

Abstract

Irbesartan inhibits the activity of angiotensin II (AII) via specific, selective noncompetitive antagonism of the All receptor subtype 1 (AT1) which mediates most of the known physiological activities of AII. In patients with mild to moderate hypertension, once daily administration of irbesartan 150 or 300 mg, with or without adjunctive antihypertensive agents, provides effective 24-hour BP control. Irbesartan reduced BP to a similar extent to enalapril and atenolol and to a significantly greater extent than losartan. The combination of irbesartan and hydrochlorothiazide resulted in additive antihypertensive effects. The drug is effective in the elderly and dosage adjustment is not required in these patients or in those with renal or hepatic failure. Preliminary studies evaluating the efficacy of irbesartan in patients with heart failure have produced encouraging results. Irbesartan is very well tolerated and neither the frequency nor the pattern of adverse events differed from those seen in placebo recipients, although headache was significantly more frequent with the latter. Similarly, the incidence of adverse events did not differ significantly between irbesartan and enalapril in patients who received either drug as monotherapy. Headache, upper-respiratory tract infection and musculoskeletal pain were the most common complaints. Thus, irbesartan is an effective therapy for patients with mild to moderate hypertension and had an adverse event profile similar to that of placebo in clinical trials. On this basis it would appear to be an effective therapeutic option in this indication.

Abstract

Irbesartan inhibits the activity of angiotensin II (AII) via specific, selective noncompetitive antagonism of the All receptor subtype 1 (AT1) which mediates most of the known physiological activities of AII. In patients with mild to moderate hypertension, once daily administration of irbesartan 150 or 300 mg, with or without adjunctive antihypertensive agents, provides effective 24-hour BP control. Irbesartan reduced BP to a similar extent to enalapril and atenolol and to a significantly greater extent than losartan. The combination of irbesartan and hydrochlorothiazide resulted in additive antihypertensive effects. The drug is effective in the elderly and dosage adjustment is not required in these patients or in those with renal or hepatic failure. Preliminary studies evaluating the efficacy of irbesartan in patients with heart failure have produced encouraging results. Irbesartan is very well tolerated and neither the frequency nor the pattern of adverse events differed from those seen in placebo recipients, although headache was significantly more frequent with the latter. Similarly, the incidence of adverse events did not differ significantly between irbesartan and enalapril in patients who received either drug as monotherapy. Headache, upper-respiratory tract infection and musculoskeletal pain were the most common complaints. Thus, irbesartan is an effective therapy for patients with mild to moderate hypertension and had an adverse event profile similar to that of placebo in clinical trials. On this basis it would appear to be an effective therapeutic option in this indication.
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About this article
Title

Irbesartan. A Review of its Pharmacodynamic and Pharmacokinetic Properties and Therapeutic Use in the Management of Hypertension

Journal

Arterial Hypertension

Issue

Vol 3, No 1 (1999)

Pages

35-51

Published online

2000-03-08

Bibliographic record

Nadciśnienie tętnicze 1999;3(1):35-51.

Authors

Jane C. Gillis
Anthony Markham

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