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Review: Losartan side effects

In this review, we analyze Losartan side effects by the time on the drug, gender and age (0-60+) of the people who have side effects while taking Losartan. The review is based on 13,043 people who have side effects while taking Losartan from FDA and social media, and is updated regularly.

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What is Losartan

Losartan (latest outcomes from 14,130 users) has active ingredients of losartan potassium. It is often used in high blood pressure.

Other drugs that have the same active ingredients (losartan potassium): Cozaar, Losartan Potassium.

On Apr, 14, 2015: 13,043 people who reported to have side effects when taking Losartan are studied


Most common side effects over time * :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
HeadacheDizzinessAngioedemaIschaemic StrokeHypertensionHypertensionBlood Pressure IncreasedDyspnoea
DizzinessFatigueDizzinessDizzinessArthralgiaHeadacheErectile DysfunctionFatigue
Blood Pressure IncreasedRenal Failure AcuteErectile DysfunctionHyperkalaemiaHeart Rate IncreasedCoughRashDizziness
InfectionDiarrhoeaNauseaAngioedemaDiarrhoeaMuscle SpasmsUrinary Tract InfectionNausea
Drug IneffectiveLiver DisorderLiver DisorderBlood Pressure IncreasedPanic AttackRenal FailurePruritusPain
Erythema MultiformeHeadacheFatigueBronchopneumoniaIrritable Bowel SyndromeConstipationOedema PeripheralDiarrhoea
Nephrotic SyndromeVomitingMalaiseHeadacheNauseaDizzinessFace OedemaHeadache
DyspnoeaAngioedemaDyspnoeaRenal Failure ChronicPneumoniaVertigoErythemaArthralgia
RashAbdominal PainHeadacheCold SweatAnaemiaDepressionPriapismAsthenia
NauseaBlood Pressure IncreasedDysphagiaConstipationGastrointestinal HaemorrhageCardiac FailureSwollen TongueDrug Ineffective

Most common side effects by gender * :


Most common side effects by age * :

Exposure To Communicable DiseaseDevice Related InfectionLupus NephritisConvulsionMalaiseDyspnoeaDyspnoeaNausea
Blood Pressure IncreasedRenal Failure AcuteInfectionArthralgiaPyrexiaHeadacheArthralgiaDizziness
VomitingHenoch-schonlein PurpuraSystemic Lupus ErythematosusArrhythmiaFatigueFatigueNauseaDyspnoea
Loss Of ConsciousnessHypertensionPyrexiaOedema PeripheralRenal FailureNauseaDizzinessFatigue
Cardiac ArrestFatigueHypertensionUrinary Tract InfectionDiarrhoeaHypertensionPainDiarrhoea
Foetal Growth RestrictionHypotensionDyspnoeaDiarrhoeaHypotensionPyrexiaHeadacheAsthenia
OligohydramniosOedema NosBlood Creatinine IncreasedPain In ExtremityPainCoughFatiguePyrexia
Congenital Renal DisorderAnaemia NosRenal FailureBlood Pressure IncreasedNauseaRashDrug IneffectiveHeadache
Pulmonary EmbolismProteinuria PresentRenal ImpairmentCondition AggravatedConvulsionDizzinessHypotensionMalaise
ProteinuriaSeptic Arthritis StaphylococcalHypotensionHypertensionUrinary Tract InfectionBlood Pressure IncreasedVomitingVomiting

* Some reports may have incomplete information.

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How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

Are you taking Losartan?




On eHealthMe, Losartan (losartan potassium) is often used for high blood pressure. Find out below the conditions Losartan is used for, how effective it is, and any alternative drugs that you can use to treat those same conditions.

What is Losartan used for and how effective is it:

Other drugs that are used to treat the same conditions:

Studies of common Losartan drug interactions:

Browse Losartan drug interactions with drugs from A to Z:

NOTE: The study is based on active ingredients and brand name. Other drugs that have the same active ingredients (e.g. generic drugs) are NOT considered.

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only, and has not been supported by scientific studies or clinical trials unless otherwise stated. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

You may report adverse side effects to the FDA at or 1-800-FDA-1088 (1-800-332-1088).

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.


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