Lanero

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Lanero

Method of action: Antiparkinsonian

Treatment option: Parkinson Disease

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 Lanero

Property Description
Active ingredient Entacapone
Form Film-coated tablet (Oral)
Pharmacological class Catechol-O-methyltransferase (COMT) inhibitor
General purpose Adjunct to levodopa therapy
Origin Synthetic nitrocatechol compound

Lanero is a prescription-only pharmaceutical product whose active ingredient is Entacapone, classified as a highly selective and reversible Catechol-O-methyltransferase (COMT) inhibitor. This drug is a synthetic compound from the nitrocatechol chemical class, prepared as a film-coated tablet for oral administration. Its purpose is exclusively to be used as an adjunctive therapy—a supporting medicine—alongside standard levodopa-based treatments for adult patients.

What Type of Medication is Lanero?

Lanero is categorized pharmacologically as a COMT inhibitor, a class of drug used for extending the benefits of levodopa. This classification means it blocks the activity of the enzyme responsible for metabolizing levodopa in the body. The medication contains the International Nonproprietary Name (INN) Entacapone as its single active ingredient. Entacapone is a peripheral COMT inhibitor, a distinguishing feature that means it primarily acts outside the brain to preserve levodopa, differentiating it from agents that may affect central enzyme activity.

What is Lanero's General Role in Therapy?

The general purpose of Lanero is to act as a levodopa extender, prolonging the duration of the therapeutic effects provided by the primary levodopa treatment. By acting on the COMT enzyme, Entacapone slows the breakdown of levodopa in the body’s peripheral tissues, leading to a measurable increase in levodopa bioavailability. The drug is used in combination with levodopa to manage patients experiencing fluctuations in their motor response. This specific mechanism promotes more stable dopaminergic stimulation, a goal often sought when the benefit of an existing levodopa dose begins to diminish.

How Does Lanero Relate to Other Treatments?

Lanero is defined by its necessary role as an adjunctive therapy; it supports the core treatment and is not administered alone. Its highly specific function is to target the COMT metabolic pathway to preserve levodopa, setting it apart from other classes like dopamine agonists. This specialized, single-agent focus on boosting the primary therapy makes it a key tool in optimizing levodopa regimens, particularly for patients experiencing the common wearing-off phenomenon.

Regulatory References

  1. NIH COMT Inhibitor Overview
  2. EMA Comtan EPAR

What side effects are possible with Lanero?

Possible Side Effects and Safety Information

The safety profile of Lanero is established through regulatory data, categorizing adverse reactions by frequency and potential clinical significance.

Commonly Observed Adverse Reactions

The most frequent side effects (classified as Very Common or Common) involve the gastrointestinal and nervous systems. These may include:

System Organ Class Very Common ( ge 1/10) Common ( ge 1/100 to < 1/10)
Gastrointestinal Disorders Nausea, Diarrhea Vomiting, Dyspepsia
Nervous System Disorders Headache Dizziness, Somnolence
Infections and Infestations Nasopharyngitis, Upper Respiratory Tract Infection

Serious and Clinically Significant Risks

Official regulatory documents emphasize the potential for serious adverse reactions that require medical attention and monitoring. These include:

  • Hepatotoxicity: The drug is associated with a risk of severe liver injury, including elevations in liver enzymes, which may be dose-dependent at levels exceeding the recommended range. Mandatory liver function testing is required before and periodically during treatment.
  • Hypersensitivity Reactions: Severe, potentially life-threatening reactions such as anaphylaxis or angioedema have been reported. Lanero is contraindicated in patients with a history of severe hypersensitivity to the drug substance.
  • Serious Infections: The use of Lanero has been linked to severe infections, including pneumonia and sepsis.
  • Neutropenia: Clinically significant reductions in neutrophil count have been documented, which may necessitate treatment interruption or discontinuation.

Safety Considerations for Specific Populations

Lanero is contraindicated in patients with severe hepatic impairment due to the increased risk of drug exposure and liver-related adverse events. Furthermore, safety and effectiveness have not been established for patients under 18 years of age. Regulatory guidance advises caution when co-administering Lanero with strong inhibitors of certain CYP enzymes, which can increase drug exposure and raise the risk of adverse reactions.

Overdose and Emergency Response

Overdose and when to seek help

Overdose Scope

Documented manifestations of a Lanero overdose are primarily associated with the exaggeration of dopaminergic adverse effects, consistent with its function as a levodopa extender. Clinical presentations explicitly noted in official labeling may include amplified dyskinesias (involuntary movements), hypotension (low blood pressure), and gastrointestinal issues such as nausea and vomiting. Postmarketing data also documents CNS effects such as confusion and agitation in cases of excessive ingestion. The official regulatory advice requires that any suspected overdose, including those approaching the reported high-dose exposure of 40,000 mg, be treated as an emergency.

Emergency Response and Management

Immediate medical attention must be sought for suspected or confirmed ingestion of an excessive dose, as hospitalization is advised for management. Official procedures mandate symptomatic and supportive treatment, which may include immediate gastric lavage and the administration of repeated doses of charcoal to reduce absorption. Continuous monitoring of the circulatory and respiratory systems is required to maintain adequate function. It is explicitly documented that no specific antidote is known for entacapone, and due to its high protein binding, hemodialysis or hemoperfusion are unlikely to be of benefit.

Therapeutic Uses of Lanero

What Lanero Treats: Main Uses and Benefits

Lanero is commonly used to help manage the symptoms of adult Parkinson's disease patients who experience end-of-dose motor fluctuations, also known as the wearing-off phenomenon. It is used to address the specific return of core symptoms that interfere with daily functioning, such as rigidity, tremor, and slowness (bradykinesia). The medication is considered relevant in clinical settings where patients are no longer achieving a stable therapeutic benefit from their established levodopa regimen.

Lanero supports the management of symptoms that interfere with daily functioning throughout the day. As an adjunctive therapy, it supports symptom management during phases when symptoms become more noticeable and assists with maintaining functional stability. The key therapeutic applications include helping to manage motor fluctuations, supporting management of reduced functional mobility, and assisting with stability in patients on levodopa/carbidopa or levodopa/benserazide.


Quick Fact: Symptom Support for Motor Fluctuations

Lanero is applied in clinical settings that involve unstable symptom patterns and is relevant when supportive symptom management is appropriate to support symptom management during the period between levodopa doses.

Regulatory References

  1. European Medicines Agency overview

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Lanero — Official Regulatory Information

Lanero (Entacapone) eligibility is strictly defined by regulatory documentation, setting clear boundaries for use based on age, existing medical conditions, and concurrent treatments.

Eligibility scope

Scope Details (as stated in regulatory labeling)
Populations for whom use is allowed (as stated in label): Adult patients (18 years and older) who are experiencing motor fluctuations with their levodopa regimen.
Populations for whom use is not recommended (if applicable): Children below 18 years of age because safety and efficacy have not been established. Pregnant women and breast-feeding mothers.
Populations for whom use is contraindicated: Patients with known hypersensitivity to the active substance or excipients. Patients with Phaeochromocytoma. Patients with a history of Neuroleptic Malignant Syndrome (NMS) and/or non-traumatic rhabdomyolysis.
Age-related eligibility rules: Use is restricted to adults. No dosage adjustment is required for elderly patients.
Condition-specific eligibility rules: Contraindicated in patients with hepatic impairment (liver disease). Use should be administered cautiously in patients with mild to moderate hepatic impairment or ischaemic heart disease.
Pregnancy and lactation eligibility status (if explicitly documented): Not recommended during pregnancy. Women must not breast-feed during treatment.
Eligibility-related restrictions: Contraindicated with concomitant use of non-selective MAO inhibitors or the combination of selective MAO-A and MAO-B inhibitors.

Eligibility classifications (high-level)

The most severe classifications defined in official documents include Contraindicated (absolute prohibition) for conditions like hepatic impairment and Phaeochromocytoma, and Use not established for the pediatric population.

Resulting eligibility structure

Official eligibility statements:

  • Lanero is permitted only for use in adult patients.
  • Use is contraindicated in patients with known hypersensitivity.
  • Use is contraindicated in patients with hepatic impairment.
  • The medicine is not recommended for use in children below 18 years.
  • Women must not breast-feed while undergoing treatment.
  • Concomitant use with non-selective MAO inhibitors is contraindicated.

Connection to the overall eligibility profile (2–4 sentences):

Regulatory documents define a restrictive eligibility profile for Lanero, limiting use to the adult population and specifying multiple absolute contraindications. These exclusions are based on pre-existing severe conditions, such as hepatic impairment and a history of Neuroleptic Malignant Syndrome, and prohibit use during pregnancy and lactation. The structure establishes who is permitted to use the drug and who must be excluded, based entirely on formal government labeling.

What should I know about interactions with other medicines?

Lanero's interaction profile is strictly defined by regulatory documents based on its role as a COMT inhibitor.

The combination of Lanero with certain medicinal products is formally restricted. Co-administration is contraindicated with non-selective Monoamine Oxidase (MAO) Inhibitors, such as phenelzine, due to a documented risk of severe hypertensive syndromes. A similar contraindication applies to patients with catecholamine-secreting neoplasms (e.g., pheochromocytoma), and use is also contraindicated in hepatic impairment.

As an adjunct therapy, the primary pharmacokinetic interaction is with co-administered levodopa. Lanero increases levodopa's plasma exposure (AUC) by 35% to 40% and prolongs its elimination half-life, an effect documented as an intended regulatory consideration.

Caution is advised when used concurrently with other catecholamine-metabolized drugs, including Epinephrine and Dopamine, as Entacapone can inhibit their peripheral metabolism, potentially resulting in arrhythmias and excessive changes in blood pressure. Additive sedative effects, such as drowsiness, may occur with concurrent use of CNS depressants, including alcohol. Regarding administration constraints, official regulatory guidance requires the separation of Lanero from oral iron preparations / iron salts by at least two to three hours to mitigate reduced drug absorption.

Mechanism of Action

How Lanero Works

The mechanism of action for Lanero (Entacapone) is defined by its selective modulation of levodopa metabolism. It operates by affecting the peripheral handling of catecholamines, resulting in a higher and more consistent concentration of levodopa precursor for transport across the blood-brain barrier.


Targeted Inhibition of Peripheral Metabolism

Lanero acts as a highly selective and reversible inhibitor of the enzyme Catechol-O-methyltransferase (COMT). This enzyme is primarily targeted in the periphery, where it catalyzes the O-methylation and inactivation of levodopa. The binding interaction reduces the rate of levodopa conversion into the metabolite, 3-O-methyldopa.


⏳ Functional Cascade for Precursor Availability

This peripheral inhibition results in an increased area under the curve (AUC) and a prolongation of the elimination half-life of levodopa in the plasma. . This mechanism, which is completely levodopa-dependent, supports the passage of a more consistent fraction of the precursor across the blood-brain barrier. The physiological consequence is a prolonged and consistent delivery profile of levodopa, the substrate for central dopamine synthesis.

Dosage and Administration Information

How Lanero Is Used

Lanero (Entacapone) is exclusively administered via the oral route as a 200 mg film-coated tablet. Its usage is defined by its role as an adjunctive treatment that must be taken only alongside a regimen of levodopa combined with a dopa decarboxylase (DDC) inhibitor (carbidopa or benserazide). This medicine is used as a component of a long-term treatment plan for motor fluctuations.


Administration and Dosage Rules

The general principle of use requires administering a single 200 mg tablet of Lanero concomitantly with each dose of the levodopa/DDC inhibitor combination. The frequency of use is therefore governed by the patient's primary levodopa schedule. The maximum recommended daily dose for Lanero typically ranges between 1,600 mg/day (eight 200 mg tablets) and 2,000 mg/day (ten 200 mg tablets).


Contextual Usage Instructions

Lanero may be taken with or without food. A crucial practical requirement is the timing relative to mineral supplements: the dose must be separated by at least two to three hours from any ingestion of iron preparations.

Initiation of Lanero therapy generally necessitates an adjustment to the primary levodopa regimen. The daily levodopa dose is often reduced, sometimes by 10% to 30%, within the initial days or weeks of treatment to manage augmented effects. No general dose adjustment is required for patients with renal impairment, but caution is advised for use in patients with hepatic impairment.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Lanero

Evidence for Use in Managing Motor Fluctuations

The research focused on Lanero (Entacapone) as an adjunct treatment in adult patients with Parkinson's disease who experienced fluctuations in the stability of their primary levodopa therapy. These are conditions characterized by fluctuating or episodic manifestations—specifically, the return of symptoms when the benefit of an established levodopa dose appears to wear off, commonly known as the "wearing-off" phenomenon.

The primary evidence includes short-term randomized controlled trials (RCTs). In these studies conducted during periods of increased symptom activity, researchers examined patients already taking levodopa-based regimens. The main outcomes examined were outcomes related to systemic or functional imbalance, such as tracking the change in the total amount of time patients reported feeling "On" versus "Off" each day, based on patient diaries. Research also explored how status evolved in the observed populations by using standardized instruments, such as the motor function sections of the Unified Parkinson's Disease Rating Scale (UPDRS).

How Studies Measured Motor Outcomes

In addition to measuring the duration of "On" and "Off" time, research monitored physical parameters. Studies examined the drug's influence on the presence of levodopa in the bloodstream, tracking how the presence of levodopa in the bloodstream was measured. Evidence from these short-term studies describes research into conditions where symptoms may vary in intensity.

Long-Term Studies and Durability of Response

While the initial evidence suggests patterns related to what was monitored during short-term study periods, the certainty of long-term outcomes remains low, as evidence beyond six months is limited. Research involved open-label extension studies where participants from initial trials was observed over periods up to several years. Findings from these settings contribute to understanding symptom patterns during chronic use, but because these studies lack a control arm for comparison, research using these designs provides limited insight into the long-term patterns of the initial measured findings.

Frequently Asked Questions (FAQ)

Common questions about Lanero (FAQ)


Q: How quickly is Lanero expected to start working?

A: Official product information describes the onset of effect as occurring after the first administration. The drug is intended to provide effects that are sustained as part of the ongoing treatment.


Q: Does Lanero have to be taken at a specific time of day?

A: Official guidance states that this medication must be taken concomitantly—at the same time—with each dose of the levodopa/DDC inhibitor regimen. Therefore, its timing is dependent on the prescribed levodopa schedule.


Q: Is it normal to feel a change in appetite while using Lanero?

A: Regulatory safety information states that appetite-related effects have been among the reported adverse reactions. Specifically, decreased appetite has been listed in official drug fact sheets.


Q: Can Lanero affect my sleep patterns?

A: Yes, regulatory documents indicate that the medicine can affect sleep patterns. Official adverse reaction lists include both somnolence (drowsiness) and insomnia (difficulty sleeping) among the reported side effects.


Q: How long does the effect of one dose of Lanero typically last?

A: The drug works by preserving levodopa, which prolongs the duration of its effect. Regulatory data on how the drug is handled by the body shows that it extends the levodopa elimination half-life from approximately 1.3 hours to about 2.4 hours.


Q: Is Lanero an anti-inflammatory medication?

A: No. Official documents classify this medicine as a highly selective and reversible Catechol-O-methyltransferase (COMT) inhibitor. This class of drug is used as a supporting treatment alongside levodopa therapy.


Q: What happens when Lanero is stopped suddenly?

A: Regulatory documents carry a warning regarding the potential for severe symptoms upon rapid dose reduction or discontinuation. These potential symptoms include serious conditions such as Neuroleptic Malignant Syndrome (NMS) and Rhabdomyolysis.


Q: Does Lanero affect mood or anxiety?

A: Yes, the medicine can affect mood and behavior. Anxiety is listed as a reported adverse reaction, and official documents also warn of potential behavioral and mood changes, including those related to impulse control disorders.


Q: Can Lanero affect blood pressure?

A: Official information warns of the potential for a sudden drop in blood pressure when a person changes position, such as standing up from sitting or lying down. This condition is known as Orthostatic Hypotension.


Q: Is Lanero a controlled substance?

A: Regulatory agencies in most regions classify this medicine as prescription-only. This medicine has not been designated as a scheduled controlled substance by major regulatory bodies.


Q: Does Lanero interact with birth control pills?

A: The drug is known to interact with certain enzymes (CYP) that are involved in the metabolism of many medicines, including hormones. Official guidance advises caution when taking Lanero with medications that rely on these metabolic pathways.


Q: What kind of interactions does Lanero have with herbal products?

A: Regulatory patient information consistently advises patients to inform their healthcare provider of all other medicines, vitamins, and herbal products they are using. This ensures that any potential interactions or risks of increased side effects can be checked.


Q: How does Lanero affect the liver?

A: Official regulatory information states that the medicine is associated with a risk of severe liver injury (Hepatotoxicity). Due to this, its use is contraindicated in patients with severe liver disease. For this reason, mandatory liver function testing is required before and periodically during treatment.


Q: What is the risk of an allergic reaction to Lanero?

A: Regulatory documents report the potential for severe, potentially life-threatening allergic reactions (hypersensitivity). Due to this risk, the medicine is contraindicated in patients with a history of severe hypersensitivity to the drug substance.


Q: Are there different strengths or formulations of Lanero?

A: The official product information specifies the drug is available as a 200 mg film-coated tablet for oral administration.


Q: Why is Lanero only available by prescription?

A: The drug is classified as a prescription-only medicine because its safe and appropriate use requires professional guidance. This includes monitoring for potential serious side effects and the necessary adjustments to the primary levodopa regimen.


Q: What are the signs that Lanero is not suitable for me?

A: Official safety documents list specific serious adverse reactions—such as signs of severe liver injury or muscle breakdown—that require immediate medical attention. These reactions are serious and require immediate medical attention.


Q: Is Lanero known to cause dry mouth?

A: Yes, dry mouth is listed in the official documents as one of the commonly reported adverse reactions that was observed in clinical trials.


Q: Is Lanero the same as other treatments for this condition?

A: No. The medicine is classified as a selective, peripheral Catechol-O-methyltransferase (COMT) inhibitor. This gives it a mechanism of action that sets it apart from other drug classes used for the condition, such as dopamine agonists.


Q: Do I need to avoid any specific foods or drinks while using Lanero?

A: Official guidance advises separating the dose from iron preparations by at least two to three hours. It is also noted that consuming a high-protein meal may affect how the levodopa component of the treatment works.


Q: Is Lanero considered safe for people with kidney problems?

A: Official documentation indicates that the way the drug is processed by the body (pharmacokinetics) is not significantly changed in people with moderate to severe renal impairment. Therefore, no general dose adjustment is required for these patients.


Q: Is Lanero a medicine that is taken long-term or short-term?

A: The medicine is prescribed as a component of a long-term treatment plan to manage motor fluctuations. However, it is noted in official documents that research evidence beyond six months is considered limited for some clinical outcomes.

How should Lanero be stored and disposed of?

How to Store and Dispose of Lanero?

Lanero must be stored according to regulatory requirements to maintain product integrity and ensure safety. The official profile for these film-coated tablets mandates keeping them in the original, closed container at room temperature, while protecting them from heat, moisture, and direct light. It is strictly required that the medicine is not frozen.

For child safety, the product must be kept out of the sight and reach of children at all times. If the medication is supplied in a bottle pack, the contents must be used within 100 days after first opening.

Disposal must strictly follow established guidelines: any unused or expired Lanero must be discarded in accordance with local regulations for pharmaceutical waste and must not be thrown into household trash or wastewater.

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

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