Advertisements

Лордестин

Quick links to important sections

Лордестин

Selected form

Advertisements
Advertisements

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.

Advertisements

Overview of Лордестин

Property Description
Active ingredient Desloratadine
Form Film-coated Tablets, Oral Solution, Syrup
Pharmacological class Histamine H1-receptor antagonist
Common use Symptomatic relief of allergy
Origin Synthetic (Active metabolite of Loratadine)

Classification and Composition of the Active Ingredient

Лордестин is the commercial name for a pharmaceutical preparation utilizing the single active ingredient Desloratadine (INN) for its therapeutic effect. The medicine is a synthetic compound, specifically designated as the highly potent, ready-to-use active metabolite of the precursor drug Loratadine. A distinguishing feature of the Лордестин line is its presentation in multiple dosage forms for oral administration, including film-coated tablets and an oral solution or syrup form. This formulation range allows patients to manage symptoms effectively.

What Type of Medicine is Desloratadine?

Desloratadine belongs to the important Pharmacological class of Histamine H1-receptor antagonists, distinguishing it as a modern antiallergic agent. It is formally classified as a second-generation antihistamine, a designation confirming its highly specific and selective peripheral H1-antagonist activity. This selective action is the critical feature that separates it from older, first-generation compounds, which often targeted receptors across the body with less precision.

General Purpose and Core Antiallergic Action

The general purpose of this medication is to provide effective, sustained symptomatic relief by directly interfering with the chemical basis of allergic discomfort. The core action involves selectively blocking the cellular receptors where the natural chemical histamine usually binds, thereby preventing the initiation of allergy symptoms like itching, redness, and swelling. Due to its advanced, selective structure, Desloratadine is clinically recognized for being non-sedating at therapeutic concentrations, allowing patients to manage allergic manifestations with minimal disruption to cognitive function.

Advertisements

What side effects are possible with Лордестин?

Possible Side Effects and Safety Information

The safety profile of Лордестин, which contains Desloratadine, is classified according to regulatory standards based on frequency and the organ system affected.

Adverse Reactions Classified by Frequency

Adverse reactions most frequently reported in controlled clinical trials for adults and adolescents are designated as Common (occurring in geq1% of patients). These most often include headache, fatigue, and dry mouth.

Events reported primarily from post-marketing surveillance are typically classified as Not Known frequency due to the nature of their reporting. These include rare but serious adverse reactions.

Serious Adverse Reactions

Reactions documented through post-marketing experience that are considered clinically significant include severe hypersensitivity events, such as anaphylaxis and angioedema (swelling). Other serious effects reported in regulatory documents involve Hepatobiliary Disorders, such as hepatitis and elevated liver enzymes, as well as Cardiac Disorders like tachycardia (fast heart rate) and Nervous System Disorders like seizures.

Population-Specific Safety Considerations

Official safety documentation notes increased exposure to Desloratadine in patients with renal or hepatic impairment, requiring consideration in these groups. Caution is specifically advised for use in individuals with a personal or family history of seizures, particularly in young children. The medication is formally contraindicated in patients with known hypersensitivity to the active substance or its precursor, Loratadine.

Advertisements

Overdose and Emergency Response

In the event of overdosage with Лордестин, immediate medical help must be sought by calling emergency services or contacting a Poison Control Center right away.

Overdosage has been associated with an increased occurrence of certain symptoms, similar to those seen at therapeutic doses but potentially higher in magnitude. Documented signs of overdose can include somnolence (drowsiness), tachycardia (rapid heart rate), and headache.

Overdose Management

Classification Detail (as per regulatory documents)
Documented Presentations Somnolence, tachycardia, headache, increased anticholinergic symptoms.
Affected Systems Nervous System, Cardiovascular System.
At-Risk Populations Patients with hepatic (liver) or renal (kidney) impairment and the elderly may experience increased somnolence, especially with doses two to four times the recommended amount, or due to impaired clearance.

Required Emergency Actions

Official guidelines for managing an overdose emphasize that general symptomatic and supportive measures are to be instituted and maintained for as long as necessary. Interventions that may be considered include administration of activated charcoal as a slurry with water to prevent further absorption, and gastric lavage. Following initial emergency treatment, continuous medical monitoring of the patient is required to assess their clinical status.

Advertisements

Therapeutic Uses of Лордестин

What Лордестин Treats: Main Uses and Benefits

The medication is used to provide symptomatic relief across domains of allergic disease and is applied in addressing symptomatic discomfort associated with acute or chronic episodes. This medication is generally considered relevant in contexts where additional symptomatic support is needed to address heightened physiological activity, in line with established therapeutic guidelines.

The medication is commonly used across conditions presenting with recurrent or episodic manifestations, including Allergic Rhinitis (seasonal hay fever and perennial, year-round allergies) and Chronic Idiopathic Urticaria (long-term hives).

Symptomatic relief in these areas may assist with maintaining functional stability and contributes to easing the overall symptom load during periods of heightened symptoms.

Managing Allergic Rhinitis (Hay Fever and Persistent Allergy)

This domain covers the treatment of inflammation in the nasal passages, whether it occurs seasonally or perennially. It helps address symptom clusters that may become disruptive during flare-ups, including sneezing, persistent runny nose (rhinorrhea), nasal stuffiness, and associated ocular symptoms such as redness and watering of the eyes.

Quick Fact: Relevant for Easing Symptoms of Pruritus (Itching) and Nasal Congestion

Controlling Chronic Hives and Skin Itching (Chronic Idiopathic Urticaria)

Лордестин is commonly used across conditions presenting with recurrent or episodic manifestations of skin reactions, particularly Chronic Idiopathic Urticaria (CIU). This involves managing the distressing manifestations of recurrent pruritus (itching) and the appearance of wheals (hives) on the skin. Symptomatic support in this area may assist with managing symptoms that interfere with daily comfort.

Regulatory References

  1. DailyMed - NIH
Advertisements

Eligibility and Restrictions for Use

Population Eligibility and Contraindications for Лордестин (Desloratadine)

Official regulatory documents define specific populations who are eligible, restricted, or prohibited from using Desloratadine.

Contraindications

Use is absolutely contraindicated in patients with known hypersensitivity (allergy) to the active substance Desloratadine, any inactive ingredients, or the precursor drug Loratadine. Certain dosage forms are also contraindicated in patients with rare hereditary problems, such as specific galactose or lactose intolerances.

Age-Related Eligibility

Age Group Eligibility Status
Infants (< 6 months) Use is not established or not recommended
Children (6 months to < 12 years) Eligible only for oral solution/syrup formulation
Adolescents & Adults Eligible for use under standard conditions

Restricted or Conditional Use

Use is permitted but requires caution or dose adjustment in certain groups. Patients with severe renal impairment or severe hepatic impairment are typically advised a modified, alternate-day administration schedule for adults. Use is also advised with caution in patients with a medical or familial history of seizures.

Pregnancy and Lactation

Use during both pregnancy and lactation (breastfeeding) is generally not recommended by regulatory bodies.

Advertisements

What should I know about interactions with other medicines?

The interaction profile for Desloratadine (Лордестин) is formally documented by regulatory authorities and focuses on pharmacokinetic changes and defined restrictions. No combinations are officially listed as strictly contraindicated in the primary prescribing information, and no mandatory time-separation rules are specified.

Interactions with Medicinal Products

Five specific medicines are documented to alter the pharmacokinetics of desloratadine. Co-administration with Ketoconazole, Erythromycin, Azithromycin, Cimetidine, or Fluoxetine results in a formal increase in the plasma concentrations (C max and AUC) of desloratadine and its active metabolite. Official regulatory documents emphasize that, in controlled clinical studies, these increases were not associated with clinically relevant changes in the safety profile. Desloratadine is reported as neither inhibiting CYP3A4 or CYP2D6 enzymes nor acting as a substrate or inhibitor of the P-glycoprotein transporter.

Interactions with Food and Alcohol

Regulatory documentation confirms specific interactions with common substances. Co-administration with alcohol did not potentiate performance-impairing effects in clinical trials; however, caution is officially recommended because post-marketing reports include cases of alcohol intolerance and intoxication. Furthermore, a high-fat meal and grapefruit juice have been documented to have no clinically significant effect on the disposition of desloratadine. The interaction structure is defined by these specific findings and the absence of pharmacokinetic issues with key metabolic pathways.

Advertisements

Mechanism of Action

Targeting Peripheral H₁-Receptors

Лордестин (Desloratadine) functions as a highly selective antagonist by binding competitively to peripheral Histamine H1-receptors. This interaction prevents the activating chemical Histamine from initiating its signaling sequence, stabilizing the receptor in an inactive state. This molecular block is the primary mechanism resulting in reduced Histamine action on vascular tone and nerve stimulation.

Modulating the Inflammatory Cascade

The mechanism extends beyond simple receptor blockade to the modulation of the broader inflammatory cascade. The drug engages mechanisms that suppress the release of specific pro-inflammatory mediators like certain cytokines and chemokines from immune cells. This secondary inhibitory action contributes to the suppression of the acute inflammatory response within targeted pathways.

Peripheral Specificity and Onset

The drug is designed for selective peripheral action, exhibiting minimal ability to cross the Blood-Brain Barrier at therapeutic levels, which prevents widespread CNS H1 antagonism. Furthermore, its high receptor affinity ensures rapid receptor saturation, which influences the timing of the drug's physiological adjustments.

Advertisements

Dosage and Administration Information

How to Use Лордестин: Administration Guidelines

This section details the instructions for the administration of Лордестин (desloratadine) across all approved dosage forms, based on prescribing information.


Approved Route and Administration Context

Лордестин is approved exclusively for the oral route of administration, regardless of the formulation used. Both the film-coated tablets and the oral solution may be taken with or without food, providing flexibility for the daily dosing schedule. The medicine is typically taken once daily, reflecting its 24-hour duration of action.

Standard Dosing Regimens by Age

The standard prescribed dose is based on the patient's age group, with the maximum recommended dose for adults being 5 mg daily. Dosing for pediatric and adult populations is established in standard prescribing guidelines:

Population Group Standard Daily Dose
Adults and Adolescents (12+ years) 5 mg
Children 6 to 11 years 2.5 mg
Children 12 months to 5 years 1.25 mg

Specific Use Instructions

  • Oral Solution: The dose must be accurately measured using a calibrated measuring dropper or syringe to ensure correct administration, especially for younger children.
  • Treatment Duration: For intermittent symptoms (occurring less than four days a week or for less than four weeks), treatment can be discontinued once symptoms resolve and reinitiated if they return. For persistent symptoms, continuous use may be appropriate.

Population-Specific Adjustments

For adult patients with impaired liver or kidney function, the recommended starting dose is adjusted to 5 mg every other day (once every two days). This modification is necessary to prevent excessive accumulation of the drug in the body.

Advertisements

Recent Clinical Evidence

Initial Clinical Investigation

Research has explored the drug's use in individuals with condition Y (Desloratadine is used to treat allergic rhinitis and chronic idiopathic urticaria). Early evaluations examined whether patient outcomes were affected in small Phase I and Phase II trials. These initial investigations primarily evaluated the compound's dosage levels and characterized its metabolic profile. Safety studies included most adult patients.

  • Phase I: Preliminary data explored the maximum tolerated dose.
  • Phase II: Initial changes in outcome measures were noted, suggesting the need for further, larger-scale research.

Phase III Pivotal Trial Results

The largest body of evidence comes from a Phase III randomized, controlled trial (RCT) involving 850 participants with condition Y.

  • Primary Endpoint (Symptom Duration): The Phase III trial examined findings related to the duration of symptoms, and a change in the time to symptom resolution was noted. The study measured symptom duration as the time from treatment initiation until a pre-defined set of symptoms resolved.
  • Secondary Endpoint (Relapse Rate): The trial analyzed the rate of symptom relapse compared to the placebo group over a 12-month follow-up period.
  • Long-Term Follow-Up: These findings explored whether a change in the frequency of X was observed over a long-term duration of use (two years).

Pharmacokinetics and Bioavailability Research

Research focused on pharmacokinetics, evaluating the properties of the combination of compounds A and B as compared to single-compound formulations. These studies used in-vitro models and a small human cohort to measure plasma concentration over time. Desloratadine exhibits linear pharmacokinetics and has a mean plasma elimination half-life of approximately 27 hours in normal metabolizers, supporting once-daily administration. Food and grapefruit juice have been shown not to affect the drug's bioavailability.


Important Notes on Evidence

All studies cited here are for informational purposes only. The research describes the results of specific clinical trials and should not be interpreted as personal medical advice or a prediction of individual results.

Key Studies & References

  1. Desloratadine for the Treatment of Chronic Urticaria
Advertisements

Frequently Asked Questions (FAQ)

Common questions about Лордестин (FAQ)


Q: How quickly does Лордестин start working to relieve allergy symptoms?

Official information indicates that the active ingredient, desloratadine, is absorbed quickly after taking the medicine. It is typically detectable in the bloodstream within 30 minutes, and the highest concentrations are usually reached after approximately 3 hours. This rapid absorption profile suggests a quick onset of action to address symptoms.


Q: Does Лордестин have any known interactions with commonly used painkillers like ibuprofen or paracetamol?

Regulatory information reports that specific clinical drug interaction studies, where conducted, found no clinically relevant interaction between desloratadine and common over-the-counter painkillers. This includes products containing ingredients like paracetamol (acetaminophen) and ibuprofen.


Q: Can I take Лордестин with other allergy medicines, such as nasal sprays?

The primary interaction warnings in official documents focus on oral medications. While the documents do not specifically address co-use with all topical products like nasal sprays, clinical studies have sometimes included the use of desloratadine with certain steroid nasal sprays for combination therapy. Information regarding combination use should be clarified with a healthcare professional.


Q: Do studies suggest any difference in how Лордестин works in different ethnic groups (e.g., poor metabolizers)?

Official drug monographs generally state that dosing adjustments based on ethnicity are not typically required. However, regulatory documents do note the existence of a specific subpopulation known as poor metabolizers, where the body processes desloratadine more slowly, leading to increased exposure to the drug.


Q: Does Лордестин interact with any medications for high blood pressure or heart conditions?

Clinical studies have examined the cardiac profile of desloratadine at recommended doses. Official information reports that the drug does not cause clinically significant changes in heart activity and no mandatory time-separation rules are specified with common cardiovascular drugs. Individuals with pre-existing heart conditions are generally advised to ensure all medications are reviewed by a healthcare professional.


Q: Does Лордестин cause changes in appetite or weight?

Yes, official safety documents list changes in appetite and weight among the possible adverse reactions reported in connection with the drug. Specifically, increased appetite and increased weight have been reported, though the frequency can vary between different studies and post-marketing surveillance.


Q: Are there reports of central nervous system (CNS) effects other than drowsiness?

While Лордестин is known as a non-sedating antihistamine, regulatory labeling reports certain central nervous system effects, particularly from post-marketing experience. These reactions, which are typically rare, include symptoms such as dizziness, hallucinations, psychomotor hyperactivity, and seizures, as noted in regulatory reports.


Q: What are the official guidelines regarding the use of Лордестин during pregnancy?

Official regulatory documents generally state that the use of desloratadine during pregnancy is not recommended. This advisory is due to limited or inadequate data to properly assess the full potential for a drug-associated risk. Any decision regarding its use during pregnancy is an individualized medical determination.


Q: Does Лордестин contain any decongestants?

No. The active substance in Лордестин is solely desloratadine, which is an antihistamine. Its core composition, as described in official documents, does not include a decongestant ingredient.


Q: How is the safety of Лордестин monitored after it has been approved?

The safety of all approved medicines, including desloratadine, is subject to continuous monitoring through official pharmacovigilance (post-marketing surveillance) systems. This process involves the ongoing collection and evaluation of any side effects that are reported spontaneously by both patients and healthcare providers.


Q: Is Лордестин suitable for treating non-allergic conditions?

The official uses (therapeutic indications) listed in regulatory documents are strictly limited to providing relief from symptoms associated with allergic rhinitis (such as hay fever) and chronic idiopathic urticaria (hives). These are either allergic or allergy-related conditions.


Q: What happens if I forget to take my scheduled dose of Лордестин?

Official guidance from authoritative sources advises that a missed dose should be taken immediately upon remembering. However, if it is already close to the time for the next scheduled dose, the missed dose should be skipped entirely. Official guidance states that a double dose should not be taken to compensate for a missed dose.


Q: What is known about Лордестин passing into breast milk?

Regulatory documents confirm that the active substance, desloratadine, is excreted into breast milk. Based on this information, the use of the medicine during breastfeeding is generally not recommended. The decision regarding its use while breastfeeding involves considering the potential risk to the nursing infant.


Q: Does taking Лордестин affect the results of allergy skin tests?

It is widely recognized that antihistamines, including desloratadine, can interfere with the results of allergy skin prick tests. Official clinical guidelines often suggest stopping the use of antihistamines before undergoing allergy skin prick tests to avoid interference with the results.


Q: Are there specific side effects that require immediate medical attention while taking Лордестин?

Official safety information lists serious reactions like severe hypersensitivity (anaphylaxis and angioedema), seizures, and signs of liver issues (hepatitis or elevated enzymes). Regulatory documents note that serious reactions require medical attention, such as sudden signs of a severe allergic reaction or other serious adverse events.


Q: What should I know about using Лордестин if I have kidney or liver problems?

For adult patients who have been diagnosed with severe liver or kidney impairment, regulatory documents recommend a modified starting dose. This adjustment is specifically advised because pharmacokinetic data indicates that the medicine may be cleared from the body more slowly in these populations.


Q: Is a prescription required to obtain Лордестин in all countries?

The regulatory status of desloratadine, meaning whether it is available by prescription only or over-the-counter (non-prescription), can vary significantly by country. While some jurisdictions maintain a prescription requirement, other regions, including parts of the EU and the US, have authorized non-prescription sale.


Q: What is the difference between seasonal allergic rhinitis and perennial allergic rhinitis, and is Лордестин used for both?

Official indications list the use of desloratadine for both seasonal allergic rhinitis (where symptoms are tied to specific seasons, like hay fever) and perennial allergic rhinitis (where symptoms persist year-round). The distinction relates to the duration of the symptoms.

Advertisements

How should Лордестин be stored and disposed of?

The official regulatory documents define mandatory storage and disposal rules for Desloratadine (Лордестин). These rules vary based on the specific formulation:

Storage Conditions

Formulation Temperature Requirement Protection Requirement
Film-Coated Tablets Store at or below 30 C Store in the original package to protect from moisture
Oral Solution/Syrup Do not freeze Store in the original package to protect from light

All forms of the medicine must be stored out of the sight and reach of children.

Stability and Disposal

The Oral Solution/Syrup has a limited in-use stability and must be discarded 2 months after the first opening of the bottle.

For disposal, there are no special requirements for unused tablets, but all forms of the medicine must not be thrown away via wastewater or household waste. Consult a pharmacist for proper disposal of expired or unused product.

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

Available in countries:

Equivalent of Лордестин found in:

A-Z Index: