Micardis

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Medically reviewed

Laura Arias

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 Micardis

What is Micardis?

Micardis is a prescription medication primarily used for the management of high blood pressure, also known as hypertension. It belongs to a class of drugs called angiotensin II receptor blockers (ARBs). By interfering with the action of certain natural substances that tighten blood vessels, this medication helps the vascular system relax, allowing blood to flow more smoothly.

Composition and Mechanism

The active ingredient in Micardis is telmisartan. In the body, telmisartan works by selectively blocking the binding of angiotensin II to the AT1 receptors in many tissues, such as vascular smooth muscle and the adrenal gland. Angiotensin II is a hormone that causes blood vessels to constrict and triggers the release of aldosterone, which can increase blood pressure. When these receptors are blocked, blood vessels remain dilated, and the workload on the heart is reduced.

Therapeutic Use

Micardis is utilized to treat essential hypertension, a condition where blood pressure is consistently elevated without a single identifiable cause. Lowering blood pressure is a key factor in reducing the risk of long-term cardiovascular complications.

In addition to treating hypertension, Micardis may be used to reduce the risk of cardiovascular events, such as heart attack or stroke, in individuals who are unable to take other types of cardiovascular medications and are at high risk due to pre-existing conditions like coronary artery disease, peripheral arterial disease, or diabetes with end-organ damage.

Available Forms

Micardis is typically available in tablet form for oral administration. The tablets are engineered to provide a consistent release of telmisartan into the bloodstream, reaching peak plasma concentrations within a few hours of ingestion. Because telmisartan has a long half-life, the medication is generally effective for a full 24-hour period, supporting once-daily dosing schedules.

Regulatory References

  1. EMA Micardis EPAR Summary

What side effects are possible with Micardis?

Possible side effects and safety information

The safety profile of telmisartan (Micardis) is classified by regulatory authorities based on the incidence and nature of adverse events reported in clinical trials and post-marketing experience. Adverse reactions are grouped by frequency and the affected System-Organ Class (SOC).

Official Adverse Reaction Classification

Adverse reactions classified as Common (ge 1% incidence) in official labeling include back pain, sinusitis, and various infections, such as upper respiratory tract infection and urinary tract infection. Uncommon events include dizziness, syncope (fainting), and gastrointestinal issues like dyspepsia (indigestion) and abdominal pain.

Serious Adverse Reactions and Restrictions

Several serious adverse reactions are documented, which represent high-level safety concerns. These include fetal toxicity, where use during the second and third trimesters of pregnancy can cause injury and death to the developing fetus, and severe allergic reactions such as angioedema (swelling of the face, throat, and limbs). Changes in renal function, including the potential for acute renal failure, and symptomatic hypotension (low blood pressure) are also noted.

Telmisartan is contraindicated (should not be used) in patients with a known hypersensitivity, during the second and third trimesters of pregnancy, and in individuals with severe hepatic impairment (severe liver dysfunction) due to the drug’s elimination pathway. The occurrence of symptomatic hypotension may be more likely upon the initiation of therapy, particularly in volume-depleted patients. The safety and effectiveness in the pediatric population have not been established.

Overdose and Emergency Response

The official regulatory documents regarding an overdose of Micardis (Telmisartan) focus on the potential for exaggerated therapeutic effects. The most prominent documented clinical manifestation is hypotension (low blood pressure), which may be accompanied by signs such as dizziness or fainting. Alterations to heart rhythm are also reported, presenting as either tachycardia (fast heart rate) or bradycardia (slow heart rate).

The official prescribing information outlines specific, severe outcomes that necessitate immediate contact with emergency services. You must call emergency services immediately if the affected person has experienced a seizure, has collapsed, has trouble breathing, or cannot be awakened. Contacting the poison control helpline is also advised.

Management of Telmisartan overdose is supportive and symptomatic. If symptomatic hypotension occurs, supportive treatment should be instituted. This may involve placing the individual in the supine position and, if necessary, administering an intravenous infusion of normal saline to restore volume. No specific antidote for Telmisartan overdose is known. A key consideration for management is the regulatory statement that the drug is not removed by hemodialysis.

Therapeutic Uses of Micardis

What Micardis Treats: Main Uses and Benefits

Micardis, which contains the active ingredient telmisartan, is a medication commonly used in clinical settings that involve acute or unstable symptom patterns. The core therapeutic utility of this medication is applied across domains where additional symptomatic support is needed and generally centers on two main areas.

The medication is used for managing the treatment of hypertension (high blood pressure) and for cardiovascular risk reduction. This makes it relevant for easing symptoms related to heightened physiological activity. This use is often used during phases when symptoms become more noticeable, particularly in clinical scenarios involving recurrent or episodic manifestations.

The medication is indicated for managing these conditions. In contexts involving heightened systemic burden, Micardis may assist with the management of cardiovascular events and contributes to easing the overall symptom load.

“The medication supports patients during episodes of heightened discomfort and assists with maintaining functional stability.”

Quick Fact: Provides support for symptoms related to heightened physiological activity

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Micardis — Official Regulatory Information

Eligibility Scope

Populations for whom use is allowed (as stated in label): Adults for essential hypertension and cardiovascular risk reduction. Use in older adults is permitted without mandatory initial dose adjustment.

Populations for whom use is contraindicated:

  • Known hypersensitivity to telmisartan.
  • Severe hepatic impairment or biliary obstructive disorders.
  • Second and third trimesters of pregnancy (discontinue immediately upon detection).
  • Concomitant use with aliskiren in patients with diabetes mellitus or renal impairment (GFR < 60 mL/min).

Age-related eligibility rules:

  • Pediatric Population (<18 years): Safety and efficacy have not been established.

Condition-specific eligibility rules:

  • Patients with mild to moderate hepatic impairment are subject to restricted use with a mandated maximum daily dose.
  • Nursing mothers are not recommended to use the medicine.

Eligibility Classifications (High-Level)

Eligibility severity classification (as defined in official documents): Contraindicated, Not Recommended, Established Use, Use Not Established.

Regulatory basis (EMA / FDA / etc.): EMA SmPC, FDA Prescribing Information.

Eligibility-context constraints (as defined in official documents): Organ function (hepatic/renal), physiological state (pregnancy/lactation), and drug-disease interaction (aliskiren dual blockade).


Resulting Eligibility Structure

Official regulatory documents establish clear eligibility boundaries. The profile mandates absolute contraindications based on allergy, late-stage pregnancy, and specific organ dysfunction (severe hepatic/biliary impairment). Age limitations restrict use primarily to adults, as efficacy is not established in children. Additionally, specific comorbid conditions trigger restricted use, such as a dose limitation for mild hepatic impairment.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile of Micardis (Telmisartan) is defined by officially documented additive pharmacodynamic effects and altered drug exposure, as stated in government regulatory labeling.

Contraindicated and Exposure-Altering Combinations

Classification Interacting Entity Interaction Statement (Regulatory Basis)
Contraindicated Aliskiren Co-administration is formally contraindicated in patients with diabetes mellitus or moderate-to-severe renal impairment (GFR < 60 ml/min/1.73 m²), representing dual blockade of the Renin-Angiotensin-Aldosterone System.
Increased Exposure Digoxin Telmisartan increases Digoxin plasma concentrations (Cmax and Ctrough) due to its activity as a potential P-glycoprotein (P-gp) efflux transporter inhibitor.
Increased Toxicity Lithium Reversible increases in serum Lithium concentrations and the risk of associated toxicity have been officially reported with co-administration. Monitoring of serum Lithium levels is mandated upon initiating or adjusting Telmisartan.

Pharmacodynamic and Clearance Considerations

Co-administration with Potassium-sparing diuretics (such as Spironolactone) or potassium supplements carries a documented risk of Hyperkalaemia (elevated serum potassium levels) due to additive pharmacodynamic effects. This risk also applies to the use of salt substitutes containing potassium. Co-administration with Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) can officially attenuate Telmisartan’s blood pressure-lowering effect and increase the risk of decreased renal function. The regulatory label notes that the product may be taken with or without food, and no mandatory timing separation rules are documented for administration relative to other specific medicines. Clearance of Telmisartan is expected to be reduced in patients with hepatic impairment.

Mechanism of Action

Micardis contains telmisartan, a non-peptide compound classified as an Angiotensin II Receptor Blocker (ARB). Its primary mechanism of action is mediated by highly selective antagonism of the Angiotensin II type 1 (AT1) receptor subtype. Telmisartan binds to the AT1 receptor, primarily located on the surface of cells in vascular smooth muscle and the adrenal gland, competitively preventing the binding and subsequent actions of the endogenous vasoconstrictor, Angiotensin II.

Blockade of the AT1 receptor inhibits the principal cellular signaling cascade initiated by Angiotensin II, which normally includes systemic vasoconstriction, the stimulation of aldosterone release, and the promotion of renal sodium reabsorption. The resulting downstream physiological consequence of AT1 receptor inhibition is a modulation of systemic vascular resistance and a decrease in total plasma volume, leading to an overall reduction in peripheral resistance within the circulatory system. Telmisartan also exhibits partial agonism of the Peroxisome Proliferator-Activated Receptor gamma (PPAR-gamma) pathway, a nuclear receptor involved in metabolic regulation, which represents a secondary, non-RAAS-mediated biological action.

Dosage and Administration Information

How Micardis is Used: Official Administration Guidelines

Micardis (telmisartan) is a prescription medicine that follows a standard administration protocol. The medication is an oral tablet for long-term use in managing chronic conditions.


Administration Scope and Dosage

The available dosage strengths for Micardis tablets are 20 mg, 40 mg, and 80 mg. The frequency for all established uses, including hypertension and cardiovascular risk reduction, is once daily.

Indication Starting Dose (Once Daily) Maintenance Range (Once Daily) Maximum Dose (Once Daily)
Hypertension 40 mg 20 mg to 80 mg 80 mg
Cardiovascular Risk Reduction 80 mg 80 mg (Fixed Dose) 80 mg

Procedural and Population-Specific Instructions

The tablet must be swallowed whole with liquid and should not be crushed or chewed. It may be taken with or without food. Due to the tablet's sensitivity to moisture, it must be removed from the sealed blister packaging shortly before administration.

In the context of hypertension, the initial dose may be adjusted (titrated) after four to eight weeks of treatment based on individual response, up to the maximum dose of 80 mg.

For patients with mild to moderate hepatic impairment, the instructions limit the total daily dose to a maximum of 40 mg. Older adults (65 years and over) typically do not require an initial dosage adjustment. If a dose is missed, the patient should skip the missed dose and take the next dose at the regular time; doses should not be doubled.

Recent Clinical Evidence

Recent Clinical Evidence Overview

Micardis (telmisartan) is an angiotensin II receptor blocker (ARB) primarily studied for its role in managing essential hypertension (high blood pressure with no identifiable cause) and for reducing cardiovascular morbidity in patients considered to be at high risk.


Efficacy in Blood Pressure Control

Clinical trials have assessed telmisartan's effect on blood pressure (BP) reduction, often using ambulatory blood pressure monitoring (ABPM) to track effects over 24 hours. Studies comparing telmisartan to placebo or other antihypertensive agents have consistently shown an association with reduced systolic and diastolic BP in patients with mild-to-moderate hypertension.

Research has explored whether once-daily dosing provides a sustained effect, particularly during the vulnerable early morning hours. Findings suggest that the drug's long half-life supports prolonged receptor blockade, which is relevant for controlling BP across a full 24-hour period.


Cardiovascular Risk Reduction

Landmark studies, such as the ONTARGET and TRANSCEND trials, evaluated the use of telmisartan in adult patients (aged 55 or older) who had a history of cardiovascular disease (CVD) or type 2 diabetes with end-organ damage. The primary goal of this research was to examine the reduction of a composite endpoint, which included cardiovascular death, nonfatal stroke, nonfatal myocardial infarction (MI), and hospitalization for heart failure.

Results from these studies indicated that telmisartan had a comparable effect to the ACE inhibitor ramipril in reducing these major cardiovascular events, particularly in high-risk populations. In patients unable to tolerate ACE inhibitors, telmisartan use was associated with a reduction in major cardiovascular outcomes compared to placebo.


Combination Therapy Findings

Research has also investigated telmisartan as part of a combination therapy. Studies involving fixed-dose combinations with other antihypertensive classes (such as diuretics or calcium channel blockers) assessed enhanced BP control and found that these combinations may lead to greater BP reduction in certain patient groups compared to monotherapy. Telmisartan's characteristics have also prompted studies exploring its potential association with improved insulin sensitivity in hypertensive patients with metabolic issues, although this remains an area of specialized clinical investigation.

Frequently Asked Questions (FAQ)

Common questions about Micardis (FAQ)

Q: Does Micardis belong to the same drug family as lisinopril?

According to official classification, the active ingredient in Micardis, telmisartan, is an Angiotensin II Receptor Blocker (ARB). Drugs like lisinopril are categorized as Angiotensin-Converting Enzyme (ACE) inhibitors. These are considered two different drug classes, even though both types of medicine act upon the body's renin-angiotensin-aldosterone system (RAAS).

Q: How quickly does Micardis start working after the first dose?

Official pharmacokinetic data indicates that the active ingredient is absorbed relatively quickly. The highest concentration of the active ingredient in the bloodstream is typically achieved within 0.5 to 1 hour after taking the dose. This measurement reflects how quickly the active ingredient enters the bloodstream, which is distinct from the time required to see the full therapeutic effect on blood pressure.

Q: Is Micardis commonly used to treat heart failure?

Regulatory documents list the formally approved uses for this medication as the treatment of hypertension (high blood pressure) and cardiovascular risk reduction in specific adult patients. Treatment specifically for heart failure itself is not listed as an approved indication in the product information.

Q: Can Micardis affect blood sugar levels?

Official warnings note that the use of this medication in diabetic patients who are also being treated with insulin or other antidiabetic medicines may be associated with the occurrence of hypoglycaemia (low blood sugar). Appropriate blood sugar monitoring is often discussed in this context.

Q: What studies have examined the long-term safety of Micardis?

Studies have examined safety outcomes over extended periods, particularly in high-risk adult populations being treated for cardiovascular risk reduction. These trials collected and reported adverse events and the rates at which participants discontinued treatment due to safety concerns.

Q: When should Micardis generally be taken during the day?

The medication is approved to be administered once daily. While official instructions emphasize taking the dose consistently every day, regulatory information does not specify a mandatory time of day, such as morning or evening, for administration.

Q: Is it necessary to avoid alcohol completely while taking Micardis?

Official drug labeling indicates that alcohol (ethanol) may have additive effects with the medication in lowering blood pressure. This effect may increase the possibility of experiencing symptoms related to low blood pressure, such as dizziness or fainting.

Q: Is there a generic version of Micardis available?

Yes, the medication containing the active ingredient telmisartan is available as a generic product. Generic Telmisartan tablets are approved by regulatory agencies, making the medication available under its generic name.

Q: Does Micardis cause coughing, unlike some other blood pressure medicines?

Official regulatory information indicates that coughing has been listed among the adverse reactions reported during the medication’s post-marketing experience. This is a recognized potential side effect.

Q: Can Micardis cause swelling in the feet or ankles?

Official clinical trial data has reported peripheral edema as an adverse event. Peripheral edema is the medical term for swelling, which often affects the extremities like the feet and ankles.

Q: Is there a chance Micardis could cause fatigue?

Yes, regulatory summaries from clinical trials list fatigue as an adverse event that has been reported by patients using the medication.

How should Micardis be stored and disposed of?

Storage and Disposal Requirements for Micardis (Telmisartan)

The official guidelines for storing Micardis tablets focus on protecting the active ingredient, telmisartan, from moisture, as it is a hygroscopic substance. The medication must be kept in its original package and remain in the sealed blister until the time of use.

Storage Conditions

Micardis should be stored at Controlled Room Temperature, typically 20 C to 25 C. It is mandatory to keep the medication out of the sight and reach of children.

Disposal

Any unused or expired Micardis tablets must be managed as pharmaceutical waste. Disposal should be carried out in accordance with local requirements, and patients should consult a healthcare professional or pharmacist for guidance on local take-back programs.

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

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