Elestar

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Medically reviewed

Marina Burgos

Last updated on 22/12/2025

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 Elestar

What is Elestar? Overview and Composition

Property Description
Active Ingredients Amlodipine, Olmesartan Medoxomil
Form Oral film-coated tablet
Pharmacological Class Calcium Channel Blocker (CCB) + Angiotensin II Receptor Blocker (ARB)
Common Use Management of high blood pressure (Hypertension)
Origin Synthetic chemical compounds

What Type of Medicine is Elestar and What is its Purpose?

Elestar is a prescription-only, fixed-dose combination medicine classified as an antihypertensive agent. It is supplied as an oral film-coated tablet and is intended for the comprehensive management of high blood pressure, known as hypertension. The use of a fixed-dose combination is recognized globally as a strategy that helps simplify the treatment regimen, which can improve patient adherence to their prescribed therapy. The dual action provided in a single tablet is clinically recognized as an effective approach for patients whose blood pressure requires more than just one medication.

Elestar’s Composition: The Dual-Action Components

Elestar is composed of two distinct, synthetic active ingredients: Amlodipine and Olmesartan Medoxomil. These ingredients define the drug's classification, as they belong to separate, complementary pharmacological classes. Amlodipine is a Dihydropyridine Calcium Channel Blocker (CCB), primarily acting to induce vasodilation by relaxing the muscles in the walls of the arteries. In parallel, Olmesartan Medoxomil is an Angiotensin II Receptor Blocker (ARB), which works by selectively blocking the action of the hormone Angiotensin II, thereby inhibiting the body's Renin-Angiotensin-Aldosterone System (RAAS). Olmesartan medoxomil is a prodrug that is rapidly converted to the active metabolite, olmesartan, to exert its blocking effect. The enhanced blood pressure lowering achieved by this specific CCB/ARB combination is widely documented, supporting its use as a robust option for sustained blood pressure control.

What side effects are possible with Elestar?

Possible Side Effects and Safety Information

The safety profile of Elestar, an Amlodipine/Olmesartan combination, is defined by regulatory classifications of adverse reactions across various organ systems. Reactions are formally classified by frequency, based on clinical trial data and post-marketing surveillance, consistent with official government documents.


Frequency-Classified Adverse Reactions

Classification Example Adverse Reactions
Very Common (10%) Peripheral Edema (swelling of ankles or feet)
Common (1% leq Incidence < 10%) Dizziness, Headache, Fatigue, Nausea, Abdominal Pain
Uncommon (0.1% leq Incidence < 1%) Palpitations, Hypotension (low blood pressure), Vomiting, Rash, Muscle Spasms

Serious Safety Considerations and Constraints

Specific serious adverse reactions are documented, including Angioedema (swelling of the face, lips, or throat) and, rarely, Sprue-like Enteropathy, a severe chronic diarrhea associated with the olmesartan component that may develop months to years after initiation. The regulatory label includes a severe warning regarding use during pregnancy, as the medication is contraindicated in the second and third trimesters due to high risk of fetal injury or death. Safety restrictions also limit use in specific populations, such as in patients with severe hepatic impairment or in those with diabetes mellitus who are concurrently taking Aliskiren, where use is contraindicated.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdosage with Elestar (Amlodipine and Olmesartan Medoxomil) is officially documented to result primarily in severe cardiovascular effects. The most critical manifestation is marked and prolonged systemic hypotension, which stems from excessive peripheral vasodilation. This severe drop in blood pressure carries the risk of progression to shock. Other documented presentations include changes in heart rhythm such as reflex tachycardia or bradycardia.

Due to the risk of severe outcomes, seeking immediate medical attention and calling a Poison Control Center are officially mandated actions following a suspected overdosage. The official label requires prompt active support of cardiovascular function. Immediate medical help is required when marked hypotension or symptoms indicating potential shock occur.

Management is strictly symptomatic and supportive, as no specific antidote is known. Procedures documented in regulatory labeling include placing the patient in a supine position, administration of intravenous fluids to manage hypotension, and the potential use of vasopressors if the hypotension is refractory to initial treatment. Consideration must be given to administering activated charcoal or gastric lavage to limit the absorption of the long-acting Amlodipine component. Close observation and frequent measurement of blood pressure are mandatory monitoring requirements. The label notes that hemodialysis is not beneficial due to the high protein binding of Amlodipine.

Therapeutic Uses of Elestar

What Elestar Treats: Main Uses and Benefits

Elestar is commonly used for the long-term management of Essential Hypertension (high blood pressure). It is applied in addressing the need for sustained blood pressure control. Its use is considered relevant for supporting the reduction of the risk associated with cardiovascular events.


Dual-Action Control and Patient Benefit

Elestar is often used when single-agent therapy has not successfully addressed the Sustained Systemic Arterial Pressure Elevation. This fixed-dose combination generally assists with managing symptom clusters that indicate difficulty in reaching established blood pressure goals, and is relevant for managing both moderate and severe hypertension. The key therapeutic benefit contributes to supporting the patient during conditions associated with the risk of major cardiovascular events.

The medication is commonly used for patient groups at high cardiovascular risk, including those with concurrent Type 2 Diabetes Mellitus or established Chronic Kidney Disease. Its application is aligned with the general therapeutic strategy that supports the management of long-term cardiovascular health risks. The combination generally assists with maintaining functional stability and supports the patient's adherence to a prescribed regimen.


Quick Fact: Relief for Sustained Arterial Pressure
This combination may help patients cope more steadily with symptom fluctuations associated with chronic hypertension by providing two complementary therapeutic approaches in one formulation.

Brief Listing of Indications: The medication is primarily used to address high blood pressure readings, support the management of persistent systemic arterial pressure elevation, and ease the overall burden associated with long-term cardiovascular health risks.

Eligibility and Restrictions for Use

The eligibility profile for Elestar (based on the official regulatory documentation for olmesartan medoxomil) strictly defines which populations are allowed, restricted, or prohibited from using the medicine.

Contraindications (Must Not Use)

  • Pregnancy: Use is strictly contraindicated. The drug must be discontinued as soon as pregnancy is detected due to the risk of fetal injury and death.
  • Concomitant Use with Aliskiren: The drug is contraindicated in patients with diabetes or moderate-to-severe renal impairment ( GFR < 60 mL/min/1.73 m^2) when used alongside aliskiren.
  • Hypersensitivity: Patients with known hypersensitivity to the drug substance or any component.

Eligibility and Limitations

Population/Condition Eligibility Status
Age (Pediatric) Use is established for children mathbf6 to mathbf16 years of age. Use is not recommended for children under 1 year old**.
Renal Impairment Use is allowed, but not recommended in severe renal impairment (e.g., CrCl < 20 mL/min) due to increased drug exposure.
Lactation/Breastfeeding Avoid use; the decision is to discontinue either nursing or the drug.

Eligibility is defined by regulatory labels to protect populations at high risk, particularly the fetus, and to guide use in patients with compromised organ function.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Elestar, a fixed-dose combination of Amlodipine and Olmesartan Medoxomil, has formally documented interaction patterns stemming from both active components, as defined by regulatory authorities.

Documented Interaction Restrictions

Interacting Substance/Class Regulatory Constraint Outcome Description
Aliskiren Contraindicated in patients with diabetes. Dual blockade of the Renin-Angiotensin System (RAS) increases the risk of hyperkalemia and changes in renal function.
Colesevelam hydrochloride Requires administration timing separation. Olmesartan exposure is reduced; must be administered at least 4 hours prior to Colesevelam.
CYP3A4 Inhibitors/Inducers Modifies Amlodipine exposure. Inhibitors (e.g., Ketoconazole) increase Amlodipine plasma levels; Inducers (e.g., Rifampicin, St. John's Wort) decrease Amlodipine levels.

Pharmacodynamic and Exposure Interactions

Co-administration with Lithium has been reported to increase serum lithium concentrations and risk of toxicity. The olmesartan component combined with Potassium-Sparing Diuretics or Potassium Supplements may cause hyperkalemia. Furthermore, the combination with NSAIDs may increase the risk of renal function worsening and reduce the intended antihypertensive effect. The amlodipine component causes a significant increase in the exposure of co-administered Simvastatin, a finding documented in the regulatory label.

Mechanism of Action

How Elestar Works

Elestar is a small molecule that functions by targeting the Cathepsin-K enzyme, a lysosomal cysteine protease. This enzyme is highly and specifically expressed within osteoclasts, the cells responsible for bone resorption. Elestar binds directly to the active site of Cathepsin-K, establishing a tight, reversible interaction that results in selective enzymatic inhibition. This binding immediately disrupts the primary function of Cathepsin-K within the bone microenvironment.

The primary biological role of Cathepsin-K is the degradation of the organic components of the bone matrix, principally Type I collagen. By inhibiting this enzyme, Elestar prevents the catalytic breakdown of the collagen scaffold beneath the osteoclast. This molecular action directly and specifically modulates the bone resorption pathway at the site of matrix demineralization, reducing the rate of collagen breakdown without immediately impacting the survival or differentiation of the osteoclast cell itself.

Dosage and Administration Information

How to Use Elestar — Administration Guidelines

Elestar (amlodipine/olmesartan medoxomil) is a fixed-dose combination delivered as a film-coated tablet for oral administration. The administration protocol focuses on a once-daily schedule and systematic dose titration.


Dosing Schedule and Timing

Feature Guideline
Route of Administration Oral only, using the film-coated tablet.
Dosing Frequency Must be taken once daily.
Standard Initial Dose 5/20 mg (amlodipine/olmesartan medoxomil).
Maximum Recommended Dose 10/40 mg once daily.
Timing in Relation to Meals Can be taken with or without food.
Titration Interval Dosage adjustments, if required, should occur at intervals of one to two weeks.

Procedural and Population Constraints

The usage protocol includes high-level constraints for certain populations:

  • Older Adults (≥ 75 years): Initiation of the fixed combination is generally not recommended.
  • Hepatic Impairment (Mild to Moderate): Caution is advised, and initiation with the fixed combination is generally not recommended.
  • Severe Renal Impairment (<20 mL/min): Use of the fixed combination is generally not recommended.

These guidelines establish the fixed-dose oral tablet as a long-term, once-daily regimen with a defined starting point, a systematic, time-controlled dose titration process, and specific precautions regarding initiation in certain patient groups.

Recent Clinical Evidence

Research evidence / Overview of studies

Research Overview

Studies have investigated participant outcomes associated with the compound.


Primary Research Areas

Primary Area of Research: Evaluation of Pain Outcomes

Large-scale clinical trials assessed participant outcomes related to quality of life and chronic pain measures.

  • Study Design: The primary studies were randomized, double-blind, placebo-controlled trials.
  • Findings: The key outcome measures were the change in patient-reported pain scores from baseline. Results from studies varied, and time to observed changes was not uniform across participants.
  • Limitations: Many studies excluded patients with certain co-occurring conditions, which limits the generalizability of the findings.

Secondary Area of Research: Evaluation of Safety and Tolerability

Studies evaluated the reported side effects and adverse event profile in participants.

  • Study Design: Safety data was collected throughout the clinical trial process.
  • Findings: Studies reported findings on the frequency of specific events, including dizziness, dry mouth, and nausea. Data included reports of serious adverse events across all study groups (including control groups).

Further Research

Comparative Studies

Head-to-head trials compared participant data between the agent and other treatments.

  • Study Design: These were open-label or double-blind comparison trials against an established standard of care.
  • Findings: These trials compared various metrics, including differences in mean pain scores and the proportion of participants reporting symptom changes. Research also included assessments of sleep quality measures.

Further Considerations

Research in participants with existing liver conditions or who are pregnant remains limited; therefore, data regarding potential effects in these groups is scarce.

  • Clinical Data: The population size in the research with these specific groups was too small to draw definitive conclusions.

Frequently Asked Questions (FAQ)

Common questions about Elestar (FAQ)


Q: Can Elestar cause weight gain or weight loss?

Official documents describe Peripheral Edema (swelling of the ankles or feet) as a common side effect of one of the components, which may involve fluid retention. Separately, severe weight loss has been reported in association with a rare, serious intestinal condition known as sprue-like enteropathy, which is linked to the olmesartan component.

Q: How long does Elestar stay in your system?

The time that the active components stay in the system varies. According to pharmacokinetic data in the official product information, the olmesartan component has a relatively short elimination half-life, while the amlodipine component has a significantly longer half-life. The longer half-life of one component is consistent with the product's defined once-daily dosing.

Q: Can Elestar make me feel dizzy or tired?

Official regulatory data indicates that dizziness and fatigue (tiredness) are listed as common adverse reactions reported during clinical trials. These effects are formally classified based on their frequency of occurrence in study participants.

Q: What should I do if I suspect an allergic reaction to Elestar?

Regulatory safety information describes signs of a severe allergic reaction, such as swelling of the face, lips, or throat (Angioedema), or difficulty breathing, as symptoms that warrant seeking emergency medical services. This information is provided in the patient counseling materials.

Q: Can pregnant women or those planning pregnancy use Elestar?

The medicine is not recommended during the second and third trimesters of pregnancy due to official warnings of high risk of fetal injury or death. Regulatory labels recommend the medication be discontinued as soon as pregnancy is detected. Discussions with a healthcare professional regarding use and conception should occur if pregnancy is being planned.

Q: What is the general patient expectation when starting Elestar?

Clinical data indicates that the blood pressure lowering effect generally begins within one week of starting the medication. The maximum or full blood pressure effect is largely apparent after approximately two weeks of continued use.

Q: Does Elestar have a risk of dependence or addiction?

Regulatory agencies classify this medicine as not being a controlled substance. This classification indicates that the medicine does not have a formal risk of dependence or addiction.

Q: What is Elestar used for besides the main condition?

Regulatory documents explicitly specify the use of Elestar for the treatment of high blood pressure (hypertension). No other medical conditions are listed as official, approved indications for this fixed-dose combination medicine.

Q: Is Elestar a kind of antibiotic or a steroid?

No. Elestar is an antihypertensive medicine, which is a specific class of drugs used to manage blood pressure. It is officially classified as a combination of an Angiotensin II Receptor Blocker (ARB) and a Calcium Channel Blocker (CCB).

Q: How quickly does Elestar start to work?

According to clinical studies, the initial blood pressure lowering effect generally begins within one week after starting the medicine. The full therapeutic effect is typically observed after about two weeks of continued use.

Q: Can I drink alcohol while taking Elestar?

Official patient information indicates that a healthcare professional may need to be consulted regarding the consumption of alcohol while taking this medication. Alcohol may potentially affect blood pressure and the overall use of this medicine.

Q: What happens if I stop taking Elestar suddenly?

Regulatory safety information indicates that blood pressure medication should not be stopped without prior consultation with a healthcare professional. Untreated or poorly managed high blood pressure can lead to serious and significant health issues.

Q: Can Elestar affect my sleep?

Official side effect data has reported sleepiness or unusual drowsiness as an uncommon reaction in clinical studies. Concerns regarding changes to sleep patterns are typically addressed by a healthcare professional.

Q: Are there any specific foods or drinks to avoid while on Elestar?

Patient materials specifically mention grapefruit juice as a food that may require special instructions from a healthcare professional regarding its consumption while on this medicine. Specific dietary restrictions, if any, are typically reviewed by a healthcare professional.

Q: Can Elestar be used by people with kidney problems?

Use in patients with impaired kidney function requires specific caution and close monitoring. Official documents indicate that the olmesartan component may cause changes in renal function in certain susceptible patients. The official label indicates that use in those with severe impairment is generally not advised.

Q: What age group is Elestar approved for?

Elestar is approved for the treatment of hypertension in adults. For children, the olmesartan component's use is established for those aged 6 to 16 years. Use in children under 6 is generally not advised.

Q: Are there generic versions of Elestar available?

Yes, the FDA has approved generic versions of the combined active ingredients, amlodipine and olmesartan medoxomil. Availability of generic forms may vary based on market and pharmacy stock.

Q: What should I do if my symptoms get worse after starting Elestar?

Patient counseling materials describe certain worsening symptoms that warrant immediate contact with a healthcare professional. Examples include new or increasing chest pain, or symptoms of severe low blood pressure or kidney problems. These could indicate the need for a change in treatment.

Q: Can I use Elestar if I have liver disease?

Use in patients with impaired liver function (hepatic impairment) requires specific caution. Since one component is extensively processed by the liver, the combination is generally not advised for initial therapy in those with hepatic dysfunction.

Q: What kind of follow-up is usually needed after starting Elestar?

Patient materials indicate that blood pressure should be checked often following the start of treatment. Monitoring of kidney function may also be needed during the course of treatment, as directed by a healthcare professional.

Q: How is Elestar different from a supplement?

Elestar is a prescription-only medication containing two chemically defined, synthetic active ingredients. Unlike prescription drugs, supplements are not regulated or approved in the same way by government drug agencies.

Q: Can Elestar be taken with other prescription medications safely?

The assessment of using Elestar alongside other prescription medicines is done by a healthcare professional. Official safety information indicates that certain drugs can affect the blood levels and effectiveness of Elestar or increase the risk of adverse reactions.

Q: What are the common reasons patients stop taking Elestar?

Discontinuation of the medication in clinical trials was generally associated with the occurrence of adverse reactions. In some rare cases, the olmesartan component has required discontinuation due to a serious intestinal condition known as sprue-like enteropathy.

How should Elestar be stored and disposed of?

How to Store and Dispose of Elestar (Amlodipine/Olmesartan Medoxomil)

Official regulatory guidelines define precise storage and disposal requirements for Elestar tablets to ensure stability and safety.


Storage and Handling

The medicine must be stored at Controlled Room Temperature, defined as 20 C to 25 C (68 F to 77 F), with permitted excursions up to 30 C (86 F). The tablets must be kept in their original, tightly closed container and protected from excess moisture and light. It is explicitly required to keep the medicine out of the sight and reach of children and to keep from freezing.


Disposal Instructions

Do not throw away unused or expired Elestar via wastewater or household waste, as this is prohibited by official regulations. Instead, patients must follow local pharmaceutical waste handling procedures. The label instructs users to ask their pharmacist for guidance on how to properly dispose of the product, ensuring environmental protection and appropriate waste management.

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

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