Last reviewed · How we verify

Placebo to losartan potassium

Merck Sharp & Dohme LLC · Phase 3 active Small molecule

Losartan potassium is an angiotensin II receptor antagonist that blocks the action of angiotensin II at its receptor in the blood vessels, causing them to relax and dilate, which lowers blood pressure and reduces the workload on the heart.

Losartan potassium is an angiotensin II receptor antagonist that blocks the action of angiotensin II at its receptor in the blood vessels, causing them to relax and dilate, which lowers blood pressure and reduces the workload on the heart. Used for Hypertension, Diabetic nephropathy.

At a glance

Generic namePlacebo to losartan potassium
SponsorMerck Sharp & Dohme LLC
Drug classAngiotensin II receptor antagonist
TargetAT1 receptor
ModalitySmall molecule
Therapeutic areaCardiovascular
PhasePhase 3

Mechanism of action

This results in decreased peripheral resistance and a subsequent decrease in blood pressure. Losartan also has a mild diuretic effect, which helps to reduce fluid volume and further lower blood pressure.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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