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start cozaar

University of Pittsburgh · FDA-approved active Small molecule

Cozaar (losartan) blocks angiotensin II receptors on blood vessels and tissues, causing vasodilation and reducing blood pressure.

Losartan, an angiotensin II receptor blocker (ARB), is primarily used to treat hypertension and heart failure. It has shown promise in reducing fibrosis and improving outcomes in various conditions, including pancreatic cancer and osteoarthritis. Despite no FDA label for Cozaar, it is widely prescribed off-label for its anti-fibrotic properties.

At a glance

Generic namestart cozaar
SponsorUniversity of Pittsburgh
Drug classAngiotensin II receptor antagonist (ARB)
TargetAT1 receptor (angiotensin II type 1 receptor)
ModalitySmall molecule
Therapeutic areaCardiovascular
PhaseFDA-approved

Mechanism of action

Losartan is an angiotensin II receptor antagonist (ARB) that selectively blocks the AT1 receptor subtype. By preventing angiotensin II from binding to these receptors, it prevents vasoconstriction and aldosterone secretion, leading to reduced peripheral vascular resistance and lower blood pressure. This mechanism also provides renal protection and reduces left ventricular hypertrophy.

Approved indications

Common side effects

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