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Azor (ANTIHYPERTENSIVES)

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Azor (ANTIHYPERTENSIVES)

Medically reviewed

Rosario Oropesa

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.

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Overview of Azor (ANTIHYPERTENSIVES)

Quick Facts

Property Description
Active Ingredients Amlodipine, Olmesartan Medoxomil
Form Oral Tablet (Fixed-Dose Combination)
Pharmacological Class Angiotensin II Receptor Blocker (ARB) / Calcium Channel Blocker (CCB) Combination
High-Level Use Management of high blood pressure (hypertension)
Status Prescription-only (Rx)

What is Azor and What Type of Drug is it?

Azor is a prescription medicine used to treat high blood pressure, formally classified as an antihypertensive fixed-dose combination (FDC) product. It is a single oral tablet that combines two distinct types of blood pressure-lowering agents: a Calcium Channel Blocker (CCB) and an Angiotensin II Receptor Blocker (ARB). This FDC formulation, manufactured by Cosette Pharmaceuticals, is clinically recognized for simplifying treatment for patients who require multiple medications to effectively manage their blood pressure, which is a key differentiating feature compared to single-agent therapies.


What are the Active Ingredients in Azor?

Azor contains two main active ingredients: Amlodipine and Olmesartan Medoxomil. Both are synthetic compounds, and their use in a single pill is supported by pharmacological studies demonstrating enhanced efficacy in reducing blood pressure. The combination offers a complementary approach to therapy: Amlodipine is the CCB component, primarily relaxing blood vessels, while Olmesartan Medoxomil is the ARB component, primarily blocking vessel-constricting hormones. This ensures a comprehensive treatment strategy.


What is the General Purpose of Azor? (High-Level Benefit)

The overarching purpose of Azor is to effectively reduce and stabilize high blood pressure in adult patients. The dual mechanism is designed to provide a comprehensive reduction in overall resistance within the circulatory system, which is crucial for achieving target blood pressure goals. This effective, consistent management is essential for reducing the long-term risk of serious cardiovascular events, such as stroke and heart attack, as part of a long-term treatment strategy.

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What side effects are possible with Azor (ANTIHYPERTENSIVES)?

Possible Side Effects and Safety Information

This section outlines the adverse effects and safety constraints of Azor (amlodipine and olmesartan medoxomil) as documented in official government regulatory documents.

Serious Safety Restrictions

Azor carries a Boxed Warning regarding Fetal Toxicity; the medication must be discontinued immediately upon detection of pregnancy as drugs acting on the Renin-Angiotensin System (RAS) can cause injury and death to the developing fetus. The drug is also contraindicated in diabetic patients taking aliskiren.

Common Adverse Reactions

The most commonly reported adverse reaction in clinical trials is Edema (swelling of the legs and ankles). Other common reactions include dizziness, headache, and fatigue.

Serious Adverse Events

Serious, but less common, adverse events documented in labeling include:

  • Hypotension (low blood pressure), especially in volume- or salt-depleted patients.
  • Increased Angina or Acute Myocardial Infarction upon initiating or increasing the dosage of the amlodipine component.
  • Sprue-like Enteropathy, a condition characterized by severe, chronic diarrhea with substantial weight loss that may develop months to years after starting olmesartan.
  • Renal Impairment or failure, particularly in susceptible patients.

Population-Specific Considerations

Use is contraindicated in pregnancy. Caution is generally advised for use in the elderly (ge75 years old), as well as in patients with severe hepatic impairment, heart failure, or severe aortic stenosis. Monitoring of serum potassium and renal function is necessary for certain at-risk patients.

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Overdose and Emergency Response

Overdose Map: Overdose and when to seek help — Official Regulatory Information for Azor (ANTIHYPERTENSIVES)

Feature Official Regulatory Statement
Documented overdose presentations Overdosage is documented to present with marked and potentially prolonged systemic hypotension and excessive peripheral vasodilation. Disturbances in heart rate, including bradycardia or tachycardia, may also occur.
Physiological systems affected Primarily the Cardiovascular System.
Dose-related or exposure-related factors Overdose risk is associated with exposure to excessive amounts of the active ingredients.
Population-specific overdose notes The official "Overdosage" section does not contain explicit details regarding population-specific management or severity.
Emergency-response statements Seek immediate medical attention for suspected overdosage. Contact a Poison Control Center or Emergency Services is the required instruction.
When immediate medical help is required Urgent medical assistance is required when profound hypotension or shock develops.

Overdose classifications (high-level)

Classification Aspect Official Regulatory Statement
Severity classification Potential for severe cardiovascular events, including shock.
Regulatory basis Information derived from FDA Prescribing Information and EMA Summary of Product Characteristics (SmPC).
Overdose-context constraints Management procedures focus on the lack of a specific antidote and the necessity of symptomatic and supportive treatment.

Resulting overdose structure

Official overdose statements:

  • Overdosage is associated with marked and prolonged systemic hypotension, which may progress to a state of shock.
  • No specific antidote is known for the combination product.
  • Management is symptomatic and supportive, requiring close monitoring of the patient’s cardiovascular status.
  • Supportive measures include the administration of intravenous fluids and the use of vasopressors if hypotension is refractory.
  • Hospital monitoring and continuous ECG monitoring are indicated due to the risk of severe cardiac effects.

Connection to the overall overdose profile

Regulatory documents define the overdose profile by the severe consequences of Profound Cardiovascular Depression, primarily manifesting as Life-Threatening Hypotension and the potential for shock. This severity dictates the mandatory instruction to seek immediate medical attention, as there is no specific antidote available. The entire management structure is focused on supporting vital functions and correcting the documented physiological outcomes.

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Therapeutic Uses of Azor (ANTIHYPERTENSIVES)

What Azor Treats: Main Uses and Benefits

Managing Uncontrolled High Blood Pressure

This medication is utilized in clinical settings where additional support is necessary to manage high blood pressure. Lowering blood pressure is generally associated with a reduced risk of cardiovascular events. This medicine is commonly used when blood pressure readings remain significantly elevated in conditions where additional management is required.

It is applied across therapeutic domains to achieve stabilization of high blood pressure, which generally helps reduce the risk of serious cardiovascular events, particularly stroke and myocardial infarction. Azor is considered relevant for managing conditions that create noticeable physiological strain on the cardiovascular system.

In clinical scenarios, the combination is often used when supportive relief is needed for systemic pressure, supporting treatment simplification for patients already stabilized on the two separate components, or as an appropriate initial step for those with severely high pressure. This medication is relevant for managing physiological factors that interfere with long-term health and daily comfort.


Quick Fact: Relief for Systemic Imbalance

Aspect Description
Primary Use Conditions presenting with persistently elevated blood pressure
Use Context Applied when blood pressure management requires supportive relief
Main Benefit Provides support that helps ease the overall burden associated with high blood pressure
Targeted Relief Assists with managing readings related to high blood pressure

Regulatory References

  1. NIH DailyMed drug information
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Eligibility and Restrictions for Use

Eligibility Profile: Who Can and Cannot Use Azor

Azor (amlodipine and olmesartan medoxomil) is indicated for use by adults (18 years and older) for the treatment of high blood pressure. However, official regulatory documents establish strict conditions and contraindications for its use.

Contraindicated Populations/Conditions Eligibility Status
Pregnancy (especially second and third trimesters) Must not use (discontinue immediately if pregnancy is detected due to fetal toxicity risk)
Diabetes when taking aliskiren Must not use (contraindicated)
Known hypersensitivity to any component or to dihydropyridine derivatives Must not use

Restricted or Conditional Use

Use is generally not recommended as initial therapy for patients aged 75 years and older or those with severe hepatic impairment (liver disease) or severe renal impairment (kidney disease). The drug requires caution and close medical supervision in patients with volume or salt depletion, as well as in those with pre-existing conditions like severe aortic stenosis, severe congestive heart failure, or severe obstructive coronary artery disease.

Pediatric Use: Safety and effectiveness have not been established in pediatric patients (under 18 years of age).

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What should I know about interactions with other medicines?

Interactions with other medicines and products

This information is based on authoritative government regulatory documents and describes documented interactions for Azor (amlodipine/olmesartan).

Contraindicated and Restricted Combinations

The dual inhibition of the Renin-Angiotensin System (RAS) by olmesartan necessitates specific restrictions. Co-administration with aliskiren is contraindicated in patients with diabetes and should be avoided in patients with renal impairment (GFR less than 60 mL/min). This restriction addresses the increased risks of hyperkalemia, hypotension, and changes in renal function.

Pharmacokinetic and Pharmacodynamic Interactions

Interacting Medicine Interaction Type Regulatory Constraint
Simvastatin Amlodipine increases exposure (CYP3A inhibition). Limit Simvastatin dose to 20 mg daily.
Colesevelam Decreases olmesartan exposure. Administer olmesartan at least 4 hours prior to Colesevelam.
Lithium Olmesartan may increase serum concentrations. Monitor serum lithium levels.
NSAIDs Pharmacodynamic antagonism/Renal risk. Monitor renal function and blood pressure.
Cyclosporine/Tacrolimus Amlodipine increases exposure. Monitor trough blood levels.

Food and Timing

Azor may be taken with or without food. No clinically significant interaction has been found with grapefruit juice or alcohol (ethanol) according to regulatory studies.

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Mechanism of Action

Azor acts through a dual mechanism involving calcium channel blockade and Angiotensin II receptor antagonism.

Amlodipine, a dihydropyridine calcium channel blocker, binds to L-type voltage-dependent calcium channels. This binding inhibits the transmembrane influx of calcium ions into vascular smooth muscle and cardiac muscle cells, primarily promoting peripheral arterial vasodilation. This action results in a decrease in total peripheral resistance.

Olmesartan medoxomil is a prodrug that undergoes rapid and complete hydrolysis to the active metabolite, olmesartan. Olmesartan non-competitively and selectively blocks the binding of Angiotensin II to the AT1 receptor subtype in tissues. The blockade of the AT1 receptor inhibits the vasoconstrictor and aldosterone-secreting effects of Angiotensin II, further altering systemic vascular resistance and volume regulation.

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Dosage and Administration Information

How to Use Azor (Amlodipine/Olmesartan Medoxomil)

The usage protocol for Azor is established for the long-term management of high blood pressure, focusing on standardized dosing and frequency. The medicine is administered via the oral route as a film-coated tablet, offered in four fixed-dose combinations, ranging from 5 mg/20 mg to the maximum daily dose of 10 mg/40 mg.

Azor is taken once daily and may be administered with or without food. For consistent use, the tablet should be taken at approximately the same time each day and must be swallowed whole with fluid, as it should not be chewed.

Official Dosing and Adjustment Schedule

The initial dose for therapy is typically 5 mg/20 mg once daily. To allow the body to reach the maximum blood pressure-lowering effect, any dose adjustments are made incrementally and should not occur more frequently than every 1 to 2 weeks.

Usage Instruction Detail
Route of Administration Oral
Frequency Pattern Once daily
Food Relationship May be taken with or without food
Titration Interval 1 to 2 weeks minimum between dose increases

Population-Specific Use Constraints

Standard protocols include specific limitations for certain populations. For older adults (aged 75 years and above) and patients with hepatic impairment, initial therapy with the fixed-dose combination product is not recommended. Additionally, in cases of mild-to-moderate renal impairment, the olmesartan component's maximum daily dose is restricted to 20 mg.

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Recent Clinical Evidence

Research evidence / Overview of studies for Azor (amlodipine and olmesartan medoxomil)


Evidence for Use in High Blood Pressure (Hypertension)

This section summarizes the main types of research, primarily Randomized Controlled Trials (RCTs), that was studied for its profile in relation to blood pressure measurements in adults with high blood pressure. These studies help show what has been observed so far about how blood pressure measurements evolved in the observed populations.

Research explored the use of the combination therapy in adults with high blood pressure, a condition characterized by physiological strain or stress. Studies monitored outcomes related to systemic or functional imbalance by measuring changes in systolic and diastolic blood pressure. The findings describe patterns observed in these studies, where changes in blood pressure measurements was observed in some studies over short periods. However, study results reflect the specific conditions under which they were conducted, and research does not determine whether an individual will respond similarly.


Evidence for Use as Initial Therapy

This block details the specific studies that was studied for its profile as an initial treatment in patients who met the study criteria for starting therapy with multiple agents. The research examined changes in blood pressure readings when the combination was observed in a starting regimen.

In this research scenario, studies monitored blood pressure changes over defined time intervals, typically short-term (around 8 weeks). The research describes the measurements of blood pressure measured in patients starting with this combination compared to those starting with either component alone. Findings indicate that patterns of blood pressure change were measured in the populations studied. Research provides context but not individual predictions, and the results apply only to the specific populations studied.


Long-term Studies and Follow-up

Research has explored blood pressure monitoring over periods extending up to a year or more. Long-term studies monitored monitoring of blood pressure and the occurrence of cardiovascular events, such as heart attack or stroke, over time. Findings contribute to the broader evidence landscape, but long-term effects are not fully established, particularly concerning cardiovascular event occurrence. Comparative evidence is lacking against many other treatments.


What is Still Uncertain About Azor (amlodipine and olmesartan medoxomil)

Evidence is limited regarding the long-term profile related to cardiovascular events. Comparative evidence is lacking against many standard treatments for high blood pressure, and follow-up durations were limited in many of the initial trials. Furthermore, subgroup findings are uncertain for some populations due to modest sample sizes, meaning that the results apply only to the populations studied.

Key Studies & References The Combination of Olmesartan Medoxomil and Amlodipine Besylate in Controlling High Blood Pressure (COACH) Study (RCT informing Initial and Add-on Therapy)

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Frequently Asked Questions (FAQ)

Common questions about Azor (ANTIHYPERTENSIVES) (FAQ)

Q: How quickly does Azor typically start working to lower blood pressure?

A: Studies indicate that the maximum blood pressure-lowering effect of Azor is generally seen within approximately two weeks after a patient has had a dose adjustment. This timeframe is consistent with the intervals for observing the maximum effect, which informs the schedule for dose adjustments mentioned in official guidelines.

Q: Do you have to take Azor at a specific time of day?

A: Official instructions state that Azor should be taken once daily at approximately the same time each day. It may be taken either with or without food; consistent adherence to this schedule is part of the labeled use.

Q: Can Azor affect sleep?

A: According to the official product information, insomnia (difficulty sleeping) is a reported side effect associated with the amlodipine component of Azor. Any concerns regarding sleep or side effects are typically addressed by a healthcare provider.

Q: Does Azor need to be adjusted for people with liver conditions?

A: Caution is necessary for patients with impaired liver function (hepatic impairment). Official documents advise that starting therapy with the fixed-dose combination is not recommended for those with severe hepatic impairment. Regulatory documents advise that use under these conditions involves close supervision, which is determined by a physician.

Q: Does Azor affect kidney function?

A: Changes in kidney function (renal function) have been reported, especially in patients who may be at risk. The olmesartan component may carry a risk of acute renal failure in severe cases, as noted in regulatory warnings.

Q: Will Azor change my heart rate?

A: The official product information lists palpitations, or the sensation of a racing or pounding heart, as an uncommon adverse reaction associated with the amlodipine component.

Q: Does Azor interact with common cold or flu medications?

A: Regulatory documents list potential interactions with certain types of medication often found in cold or flu remedies, such as NSAIDs (like ibuprofen). Additionally, the blood pressure-lowering effect may be reduced by medications like sympathomimetics, which are included in some common decongestants.

Q: Does Azor cause weight gain?

A: Weight gain is not listed as a common or serious adverse reaction in official drug labeling. Swelling (edema) is listed as a common side effect of Azor. Any substantial or rapid change in weight should be discussed with a healthcare provider.

Q: Is there a generic version of Azor available?

A: The FDA has approved generic versions of the combination of amlodipine and olmesartan medoxomil. These versions contain the same active ingredients and are considered therapeutically equivalent to the brand-name product.

Q: How is Azor different from other single-ingredient blood pressure medicines?

A: Azor is a fixed-dose combination (FDC) product, meaning it combines two different types of blood pressure agents into a single pill: a Calcium Channel Blocker (CCB) and an Angiotensin II Receptor Blocker (ARB). It is designed to use two distinct mechanisms simultaneously, unlike single-ingredient medicines.

Q: Why might a doctor switch a patient from one blood pressure drug to Azor?

A: Official documents state that Azor is indicated for patients whose blood pressure is not adequately controlled when using only one blood pressure medication (monotherapy), such as amlodipine or olmesartan alone. It is used to provide greater blood pressure control through dual action.

Q: What are the signs of an allergic reaction to Azor?

A: While hypersensitivity is a contraindication, serious allergic-type reactions have been reported in post-marketing experience. These include angioedema, which is characterized by swelling of the face, lips, throat, or tongue.

Q: Is Azor safe for older adults?

A: Official labeling advises caution for older adults. The fixed-dose combination product is not recommended for use as initial treatment in patients aged 75 years and older. Regulatory documents indicate that use for this population requires appropriate medical supervision, as determined by a healthcare provider.

Q: Is Azor a diuretic?

A: No. Azor is officially classified as a combination product containing a Calcium Channel Blockers (CCB) and an Angiotensin II Receptor Blocker (ARB). It does not belong to the diuretic (or 'water pill') class of drugs.

Q: Why is Azor sometimes prescribed when a patient is already taking another drug?

A: The drug is indicated for the treatment of high blood pressure and may be used alone or with other antihypertensive agents. This use reflects the need for multiple medications to achieve target blood pressure goals in some patients.

Q: What kind of monitoring is needed while taking Azor?

A: Official guidelines indicate that monitoring is typically involved when using this medication. Medical supervision should generally include regular checking of renal function (kidneys) and serum electrolytes (such as potassium), especially for patients who may be at higher risk.

Q: Does Azor help protect against stroke or heart attack?

A: Clinical guidelines and regulatory documents state that lowering high blood pressure reduces the risk of serious cardiovascular events, including stroke and myocardial infarction (heart attack). The goal of blood pressure management is to reduce the risk of serious cardiovascular events, which is the overall intended benefit of the treatment.

Q: What are the general differences in how the two components of Azor function?

A: The two components function in complementary ways to lower blood pressure. Amlodipine is a Calcium Channel Blocker that works primarily by relaxing and widening the blood vessels, while Olmesartan is an Angiotensin II Receptor Blocker that works by blocking a hormone that causes blood vessels to tighten.

Q: Are there any common reasons patients stop taking Azor based on studies?

A: In controlled clinical trials, the most common reason for patients to stop using the medication due to an adverse event was peripheral edema, which is swelling of the hands or feet. This side effect is primarily linked to the amlodipine component.

Q: What is the expected duration of the blood pressure lowering effect from one dose of Azor?

A: Azor is designed to be taken once daily. Official product information indicates that the dose is intended to provide a consistent blood pressure-lowering effect over the entire 24-hour dosing interval.

Q: Is Azor considered a 'first-line' blood pressure medication?

A: Azor is indicated for the treatment of high blood pressure and can be used as initial therapy in patients when a medical assessment suggests they are likely to require multiple medications to achieve their blood pressure goals.

Q: What are the official requirements for disposing of expired Azor?

A: When disposing of expired or unused medication, patients are encouraged to use a local medicine take-back program. If no program is available, the FDA's guidelines recommend mixing the drug with an undesirable substance (like coffee grounds or dirt) and sealing it in a container before disposal in the household trash.

Q: Why is a dry cough not a common side effect of Azor?

A: A dry cough is not commonly reported as a side effect. The olmesartan component is classified as an Angiotensin II Receptor Blocker (ARB), which differs from another class of blood pressure medicines (ACE inhibitors) that is commonly associated with cough.

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How should Azor (ANTIHYPERTENSIVES) be stored and disposed of?

Official Storage and Disposal Requirements

Azor (amlodipine and olmesartan medoxomil) tablets must be stored according to specific conditions outlined in regulatory labeling to maintain their stability.

Storage Conditions:

Requirement Specific Labeled Condition
Temperature Controlled Room Temperature: 20 C to 25 C (68 F to 77 F), with permitted excursions up to 30 C (86 F).
Container Keep the tablets in their original container.
Child Safety Keep out of the reach of children.

Disposal Instructions:

To dispose of unused or expired Azor, follow state or local guidelines. The medication is not recommended for flushing down the toilet or pouring down a sink; utilize a medicine take-back program if one is available in your area.

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

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