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  • Title: Angiotensin II receptor inhibition. A new therapeutic principle.
    Author: Messerli FH, Weber MA, Brunner HR.
    Journal: Arch Intern Med; 1996 Sep 23; 156(17):1957-65. PubMed ID: 8823149.
    Abstract:
    Angiotensin II receptor antagonists represent a new class of drugs that provide a site-specific blockade of the effects of angiotensin II. Losartan potassium, the first compound of this drug class, has recently become available in the United States. The clinical experience with angiotensin II receptor antagonists has demonstrated that these drugs are safe and efficacious for the treatment of hypertension and, possibly, congestive heart failure. Unlike with angiotensin-converting enzyme inhibitors, the incidence of cough observed with angiotensin receptor antagonists is similar to that with placebo. Although several angiotensin receptors have been characterized, the effects of losartan and other angiotensin receptor antagonists under development are selective for the angiotensin II type 1 receptor. Unlike angiotensin-converting enzyme inhibitors, angiotensin receptor antagonists do not inhibit bradykinin metabolism or enhance prostaglandin synthesis. The antihypertensive efficacy of the angiotensin receptor antagonists has been documented to be similar to that of angiotensin-converting enzyme inhibitors. If the findings of clinical studies corroborate the initial reports on efficacy and safety, it seems likely that the angiotensin receptor antagonists will be added to the list of drugs that have been deemed suitable for first-line therapy in the treatment of hypertension and congestive heart failure.
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