Angizaar

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Angizaar

Property Description
Active ingredient Losartan potassium
Form Film-coated tablet (Oral)
Pharmacological class Angiotensin II Receptor Blocker (ARB)
General purpose Cardiovascular maintenance
Origin Synthetic compound

Angizaar is a prescription-only medication specifically used for its systemic effects on the cardiovascular system. Its identity is defined by its active component, Losartan, which belongs to the distinct pharmacological group known as Angiotensin II Receptor Blockers (ARBs), a synthetic class of antihypertensive agents. Angizaar is often positioned for patients requiring consistent, daily management of vascular function.


What Type of Medication is Angizaar?

Angizaar is a synthetic compound categorized as an Angiotensin II Receptor Blocker (ARB). The active ingredient is Losartan potassium, a chemical substance that functions as an Angiotensin II antagonist. Unlike the related class of Angiotensin-Converting Enzyme (ACE) inhibitors, Losartan acts by directly and selectively blocking the final binding site—the AT1 receptor—which is the main pathway for the hormone's vessel-constricting effects. Losartan is globally recognized as an essential cardiovascular medicine for managing blood pressure.

Composition and Physical Form

The core composition of Angizaar is its active ingredient, Losartan potassium, combined with standard pharmaceutical excipients that form the delivery vehicle.

This medication is typically presented for oral administration as a single-ingredient product in the form of a film-coated tablet. Losartan is a non-peptide molecule that is chemically synthesized, confirming its origin as a synthetic compound rather than a naturally derived product. The established manufacturing and structural consistency of this active ingredient are key factors in its reliable therapeutic application.

General Purpose and Systemic Effect

The general purpose of Angizaar is to reduce resistance in the blood vessels, thereby lessening the workload on the heart.

The drug achieves this through vasoconstriction inhibition. By blocking the effects of the powerful natural hormone Angiotensin II, the medication facilitates the relaxation and widening of the blood vessels. This results in a blood pressure lowering effect, which is the systemic benefit leveraged for long-term management and support of the cardiovascular system.

Regulatory References

  1. World Health Organization (WHO) list
  2. Losartan entry on the Essential Medicines List

What side effects are possible with Angizaar?

Possible Side Effects and Safety Information: Angizaar

The official safety profile for Angizaar (Losartan) is classified according to regulatory standards, organizing potential adverse reactions by both frequency and the physiological system affected. This provides a clear, label-based definition of the medication's risk characteristics.


Frequency-Classified Adverse Reactions

Adverse effects are categorized based on their rate of occurrence as documented in official sources:

  • Common Reactions (ge 1/100 to <1/10): These include dizziness, headache, fatigue, and symptoms related to the upper respiratory tract, such as nasal congestion.
  • Uncommon Reactions (ge 1/1,000 to <1/100): Examples are vertigo, palpitations, diarrhea, nausea, rash, and potential dose-related hypotension (low blood pressure).
  • Rare Reactions (ge 1/10,000 to <1/1,000): This group includes severe hypersensitivity events, notably angioedema (swelling of the face, lips, or throat) and anaphylactic reactions, as formally described in regulatory documents.

Key Safety Constraints and Serious Reactions

The regulatory label highlights several critical safety considerations:

  • Serious Adverse Reactions: The officially documented serious risks include angioedema and fetal toxicity. Losartan is contraindicated during the second and third trimesters of pregnancy due to the risk of fetal injury or death.
  • Population-Specific Notes: Specific cautions are noted for patients with severe hepatic impairment and those with renal artery stenosis. The risk of hyperkalemia (elevated potassium levels) is also a concern, particularly when co-administered with potassium supplements.
  • Time-Related Pattern: A risk of pronounced hypotension is noted, especially following the first dose in patients who are volume-depleted.

Overdose and Emergency Response

Overdose and When to Seek Help

The information in this section reflects the officially documented descriptions of overdose and the emergency actions mandated by government regulatory authorities for Angizaar (Losartan potassium).


Documented Overdose Manifestations

Official labeling indicates that the most likely manifestations of overdose are extensions of the drug's effect, including hypotension (low blood pressure) and alterations in heart rate, such as tachycardia (rapid heartbeat) or occasionally bradycardia (slow heartbeat). Other effects reported in cases of excessive ingestion include dizziness.

Severe Outcomes and Emergency Actions

Life-threatening risk: The primary severe risk documented is sustained hypotension leading to circulatory collapse and shock. This severe outcome requires immediate intervention.

Mandatory action: Regulators mandate that patients seek immediate medical attention or contact emergency services if an overdose is suspected. Contacting a Poison Control Center is also required for specialized guidance on managing overexposure.

Management and Specific Constraints

Management focuses on symptomatic and supportive treatment, including the stabilization of the patient's circulatory status. For recent oral ingestion, measures such as considering gastric lavage or administering activated charcoal may be utilized to reduce absorption. Official documentation explicitly states that no specific antidote is known for Losartan overdose, and it cannot be removed from the bloodstream by hemodialysis.

Therapeutic Uses of Angizaar

What Angizaar Treats: Main Uses and Benefits

Angizaar is commonly used to manage conditions associated with systemic cardiovascular and renal stress. Its primary applications generally include contributing to the sustained management of chronic high blood pressure (hypertension), assisting in the management of cardiovascular risk factors like stroke and heart attack, offering support for diabetic kidney disease (nephropathy), and assisting in the management of chronic heart failure.

The medication is generally applied in clinical settings that involve sustained cardiovascular maintenance. The medication is relevant for easing the persistent physiological strain on the arteries and heart. For example, in managing kidney disease, the medication may assist with the reduction of proteinuria (protein in the urine).

“The therapeutic support assists in easing the physiological strain on the heart, which supports the sustained management of cardiac function and contributes to easing the overall symptom load.”


Quick Fact: Supports Management of Chronic Vascular Strain The medication supports the handling of distressing manifestations of persistent, systemic force placed on the blood vessels, which assists with maintaining functional stability.


Eligibility and Restrictions for Use

Angizaar (Losartan potassium) eligibility is defined by official regulatory documentation, establishing clear restrictions and absolute prohibitions for certain populations.

Populations for Whom Use is Prohibited (Contraindicated)

Category Regulatory Status
Pregnancy Contraindicated in the second and third trimesters; must be discontinued immediately upon detection [1.1].
Hypersensitivity Contraindicated in patients with a known allergy to Losartan or any component of the formulation [4.3].
Severe Hepatic Impairment Contraindicated (Severe liver disease) [4.2].
Dual RAAS Blockade Contraindicated with co-administration of aliskiren in patients with diabetes mellitus or renal impairment [4.4].

Age and Condition-Based Restrictions

Adults (18+ years) and Geriatric patients (65+ years) are eligible for all labeled indications. Pediatric use is eligible only for children 6 years of age and older for hypertension. Use is not recommended in children under 6 years or in pediatric patients with an estimated GFR less than 30 mL/min/1.73 m^2 [1.3, 2.2].

Lactation (Breastfeeding) is not recommended. Use is restricted and requires caution in patients with mild-to-moderate hepatic impairment or those with bilateral renal artery stenosis [1.4, 4.3]. This regulatory structure defines who may and must not be administered the medicine.

What should I know about interactions with other medicines?

Angizaar (Losartan potassium) interacts with various medicines and substances, primarily through additive pharmacodynamic effects and metabolic (pharmacokinetic) alterations, as documented in regulatory prescribing information.

Pharmacodynamic Interactions and Restrictions

Co-administration with Agents that increase serum potassium, such as potassium-sparing diuretics or potassium supplements, carries a documented risk of hyperkalemia (elevated serum potassium levels). Additionally, the use of Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) may diminish the blood pressure-lowering effect and increase the risk of renal function impairment. Losartan is also documented to reduce the renal clearance of Lithium, which increases the risk of lithium toxicity.

A formal restriction involves Dual blockade of the Renin-Angiotensin System (RAS). Co-administration of Losartan with a Direct Renin Inhibitor like Aliskiren is contraindicated in patients with underlying diabetes or moderate-to-severe renal impairment.

Pharmacokinetic Interactions

Losartan metabolism involves the CYP450 enzyme system, leading to altered drug exposure when co-administered with modulators:

Substance Type Example Documented Outcome
CYP2C9 Inhibitor Fluconazole Increases Losartan exposure (AUC) by approximately 70%
CYP Inducer Rifampin Decreases Losartan and active metabolite exposure

Furthermore, patients with documented hepatic impairment (cirrhosis) are subject to significantly increased Losartan plasma concentrations due to reduced clearance.

Mechanism of Action

Angizaar is a small molecule that acts by selectively binding to the receptor activator of nuclear factor kappa-B ligand (RANKL), a protein essential for osteoclastogenesis. The binding of Angizaar prevents RANKL from interacting with its cognate receptor, RANK, located on the surface of osteoclast precursors and mature osteoclasts. This blockade interrupts the signal transduction pathway necessary for osteoclast maturation, activity, and lifespan. The resulting reduction in the formation, function, and survival of osteoclasts leads to a decrease in bone resorption activity. This modulation of cellular activity in the skeletal system results in the preservation of existing bone structure by shifting the balance away from bone degradation.

Dosage and Administration Information

How Angizaar is Used: Official Administration Guidelines

Angizaar (losartan potassium) is exclusively administered via the oral route as a film-coated tablet, the standard formulation for its use. The administration pattern is standardized as once daily, establishing a simple, routine schedule appropriate for long-term maintenance. The tablets must be swallowed whole with water and can be taken with or without food, offering procedural flexibility for consistent daily intake.

Usage begins with a starting dose, which is typically 50 mg once daily for most adult patients. A lower initial dose of 25 mg once daily is required for individuals with mild-to-moderate hepatic (liver) impairment or for those who are volume-depleted. The maintenance regimen allows for dose increases based on response, which can be titrated up to a typical maximum of 100 mg once daily. Dosage may reach up to 150 mg once daily for specific conditions, such as the management of heart failure. This titration process typically begins after a period of three to six weeks following treatment initiation.

Clinical protocols also govern the management of timing errors. If a dose is missed, the patient should skip that dose entirely and resume the regular schedule; doubling the next dose is strictly prohibited. Furthermore, use in pediatric patients (ages 6–16) is governed by a weight-based dose regimen, distinct from standard adult protocols. This structured administration framework ensures standardized application.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Angizaar (Losartan)


Evidence for use in Chronic High Blood Pressure

Losartan was studied in large-scale trials to assess its application in chronic high blood pressure. The primary outcomes examined monitored Systolic and Diastolic Blood Pressure (BP) measurements in adult populations, including those with existing heart changes like Left Ventricular Hypertrophy (LVH). Research consistently highlights changes measured during the study period regarding blood pressure levels in the observed populations, aligning with expected patterns for this class of medication.


Evidence for use in Reducing Cardiovascular Risk

Specific long-term trials (such as the LIFE study) evaluated Losartan's patterns regarding the incidence of major cardiovascular events. In high-risk groups with hypertension and LVH, data show patterns related to a lower observed rate of stroke when compared against a specific older beta-blocker drug. The certainty regarding the direct applicability of these specific findings to all hypertensive patients who do not have LVH remains low, as the results are highly specific to the comparison made in the study.


Evidence for use in Diabetic Kidney Disease

Losartan was studied in large, placebo-controlled trials (RENAAL study) for its application in Type 2 diabetes patients with kidney strain (nephropathy). The primary research examined a composite endpoint, which included the doubling of serum creatinine and the development of End-Stage Renal Disease (ESRD). Studies report how symptoms evolved in the observed populations regarding the concentration of proteinuria (protein in the urine) compared to placebo. However, certainty remains low because the main studies relied on outcomes that are surrogate endpoints rather than direct measures of patient survival or long-term health status.


Evidence for use in Chronic Heart Failure

Research has explored the use of Losartan in patients with symptomatic heart failure who also had reduced pumping function, often focusing on those documented as intolerant to ACE inhibitors. Outcomes monitored included a composite of all-cause death or hospitalization for heart failure. Comparative research against other drug treatments data show patterns related to overall survival when studied for comparison, but evidence is limited for patients who are not intolerant to ACE inhibitors.

Key Studies & References

  1. Renin angiotensin aldosterone system blockade and renal disease in patients with type 2 diabetes. An Asian perspective from the RENAAL Study

Frequently Asked Questions (FAQ)

Common questions about Angizaar (FAQ)

Q: Is there a specific time of day (morning vs. evening) that is generally recommended for taking Angizaar?

Official product information indicates that Angizaar is taken once daily. While the schedule allows for flexibility, some regulatory documents mention that when a higher dose is prescribed, it may be taken in the morning. Taking the dose at a consistent time each day is the standard approach to help maintain steady medication levels.

Q: Can Angizaar be split in half, or must the film-coated tablet be swallowed whole?

Drug administration guidelines state that Angizaar tablets should be swallowed whole with water. Whether a film-coated tablet can be split is determined by its specific formulation and is usually indicated by a score line and specific instructions in the product labeling. Swallowing the tablet whole is the standard method for helping to ensure the intended, consistent dose is delivered.

Q: Is there an official regulatory warning about drinking alcohol while on Angizaar?

Official product information often warns that drinking alcohol can increase the blood pressure-lowering effect of losartan. This effect may potentially lead to symptoms such as lightheadedness or dizziness. Regulatory information for this type of medication often notes that alcohol consumption is discouraged, particularly when initiating treatment or following a dose adjustment.

Q: How does the dosage of Angizaar differ for a patient with diabetic kidney disease compared to a patient with just hypertension?

According to the official prescribing information, the typical initial dose is the same for both high blood pressure and diabetic kidney disease. Furthermore, the potential range for dose adjustments is consistent for both conditions when a stronger therapeutic effect is indicated. This indicates a consistent approach to its use for both cardiovascular and kidney support.

How should Angizaar be stored and disposed of?

Storage and Handling Requirements

Losartan Potassium tablets (Angizaar) must be stored at Controlled Room Temperature, which is officially defined as 20 C to 25 C (68 F to 77 F), with permitted short-term excursions up to 30 C (86 F). The medication must be kept from freezing and stored in a tight container to protect it from moisture and light. It is a mandatory regulatory requirement to keep the tablets out of the reach of children.

Classification Official Storage Rules
Storage Temperature Controlled Room Temperature
Environmental Protection Protect from Moisture and Freezing
Packaging Rule Keep in a tight container

Official Disposal Instructions

Unused or expired Angizaar must be disposed of according to local regulations and pharmaceutical waste instructions. Regulatory guidance advises that the product must not be allowed to enter sewers or the environment and should be disposed of through appropriate waste facilities or authorized drug take-back programs.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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