Eladin

Quick links to important sections

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.

Overview of Eladin

Property Description
Active ingredient Loratadine
Form Oral tablets, oral syrup
Pharmacological class Second-generation antihistamine
Common use Relief of allergy symptoms (e.g., rhinitis, urticaria)
Origin Synthetic compound

What is Eladin and What Type of Drug is it?

Eladin is a common trade name for a synthetic finished medicinal product containing the active ingredient Loratadine. This compound belongs to the modern pharmacological class of second-generation antihistamines, also known as Histamine H1-receptor antagonists. Loratadine functions primarily to block peripheral H1 receptors. This mechanism helps interrupt the body's allergic response.


This medication is manufactured as a single-ingredient product, and is often available as both oral tablets and a palatable oral syrup formulation, designed for once-daily ingestion via the oral route of administration. The classification of Loratadine as a second-generation agent is a critical feature, clinically recognized for its reduced sedative profile compared to first-generation compounds. Loratadine and its active metabolite, desloratadine, are utilized for their selective peripheral H1 antagonism. This means the drug is designed to act mainly in the body to control allergy symptoms.

Eladin's Core Purpose: The Benefit of H1 Antagonism

The general therapeutic purpose of Eladin is to manage and relieve the systemic discomfort caused by the body's overreaction to allergens. Its specific role as an H1 antagonist makes it useful for addressing symptoms associated with conditions driven by histamine release. The drug's structure results in low penetration of the blood-brain barrier (BBB), meaning it is commonly characterized as a generally non-sedating option.


This includes addressing the characteristic symptoms of seasonal allergic rhinitis, such as sneezing or a runny nose, and chronic reactions like persistent itchiness from chronic spontaneous urticaria (CSU). For instance, a typical use scenario involves taking it once daily to maintain clear breathing and alleviate continuous sneezing during the spring pollen season. The medication provides a long-acting benefit, consistent with its design as a reliable and generally non-sedating option for daily allergy symptom management.

Regulatory References

  1. NIH

What side effects are possible with Eladin?

Possible side effects and safety information

The safety profile of Eladin, containing the active ingredient Loratadine, is organized according to official regulatory systems, grouping documented adverse reactions by frequency and the body system affected.

Documented Adverse Reactions and Frequency

In adults and adolescents (aged 12 years and over), the most Common adverse reactions, reported in 1 to 10 users per 100, are Headache, Somnolence (drowsiness), and Fatigue. Adverse effects considered Uncommon, occurring in 1 to 10 users per 1,000, may include Insomnia and Nervousness. Reactions are further classified by the affected System-Organ Class (SOC), with many being listed as Very Rare (less than 1 per 10,000) or having a Frequency Not Known (based on post-marketing reports).

System-Organ Class Examples of Documented Adverse Reactions
Nervous System Dizziness, Convulsions (seizures)
Cardiac Tachycardia (rapid heartbeat), Palpitations
Hepatobiliary Abnormal Hepatic Function
Immune System Hypersensitivity reactions, Anaphylaxis
Gastrointestinal Dry Mouth, Nausea, Gastritis, Abdominal pain

Serious Adverse Reactions and Safety Constraints

Official labeling highlights certain outcomes as Serious Adverse Reactions, including Anaphylaxis, Convulsions, and clinically significant Abnormal Hepatic Function.

Loratadine is formally Contraindicated in individuals with a known hypersensitivity to the active substance or any excipient. Official documents specify that caution must be exercised in patients with Severe Hepatic Impairment. Furthermore, high-level safety notes indicate that the co-administration of strong inhibitors of certain metabolic enzymes may lead to increased plasma concentrations of Loratadine, which could potentially increase the risk of adverse reactions.

Overdose and Emergency Response

Overdose and When to Seek Help

In the event of an overdose with Eladin (Loratadine), immediate medical attention is required, and patients should contact a Poison Control Center without delay. The official regulatory guidance mandates that prompt general symptomatic and supportive measures be instituted and maintained for the duration necessary.

Overdosage may present with specific clinical manifestations affecting the central nervous system and the heart. Documented signs and symptoms include central nervous system effects such as somnolence (drowsiness) and headache, alongside cardiovascular effects like tachycardia (rapid heart rate). There may also be an increased occurrence of general anticholinergic symptoms. Population-specific reports indicate that in children, overdoses of the syrup formulation have specifically been associated with reports of palpitations and extrapyramidal signs.

The medical management procedures described in official product information include the administration of activated charcoal as a slurry and the potential use of gastric lavage. Emesis is listed as a potential supportive measure, though it is officially documented as contraindicated in patients with impaired consciousness. Following initial emergency treatment, the regulatory guidance emphasizes that medical monitoring of the patient must be continued. It is also a documented physiological finding that Loratadine is not eliminated by haemodialysis.

Therapeutic Uses of Eladin

What Eladin Treats: Main Uses and Benefits

Eladin (Loratadine) is applied across domains where additional symptomatic support is needed, contributing to easing the overall symptom load associated with the body's allergic response. The drug is utilized for the relief of symptoms associated with allergic rhinitis and chronic idiopathic urticaria.


Relief of Seasonal and Year-Round Upper Respiratory Allergies

Eladin may assist with managing symptom clusters that create noticeable functional strain in contexts involving heightened physiological activity. It helps address symptoms related to seasonal and perennial allergic rhinitis, such as recurrent sneezing, excessive runny nose (rhinorrhea), and itching of the nose and throat. The relief supports the patient during episodes of heightened discomfort and contributes to maintaining a sense of stability when symptoms are more noticeable.

Management of Allergic Ocular and Skin Symptoms

The medication is commonly used across conditions involving inflammatory or irritative processes. It helps address ocular symptoms of itchy and watery eyes (allergic conjunctivitis). Furthermore, it is applied in addressing dermatological symptoms, such as managing the pruritus (itching) and the visible manifestations of urticaria (hives), which may intensify temporarily during flare-ups.

Core Therapeutic Advantage: Non-Sedating 24-Hour Support

Eladin is commonly used when short-term symptomatic assistance is needed, offering symptomatic relief that generally has a low potential for causing sedation. This helps patients cope more steadily with symptom fluctuations, supporting general well-being during symptomatic phases, and assists with maintaining functional stability.

Quick Fact: Symptom Management for Pruritus
Eladin plays a role in managing the symptom of pruritus (itching) associated with allergic reactions, including chronic hives, and contributes to easing the overall symptom load.

Eligibility and Restrictions for Use

Who Can and Cannot Use Eladin?

Eligibility to use Eladin (Loratadine) is determined by regulatory agencies based on age, specific health conditions, and physiological status.

The medicine is contraindicated for any individual with a known history of hypersensitivity (allergic reaction) to Loratadine or to any inactive ingredients in the specific formulation. Use is also generally not recommended in children under 2 years of age, as safety and efficacy have not been formally established in this population.

Conditional and Restricted Eligibility

Population Group Regulatory Status Constraint
Severe Hepatic Impairment Restricted Use Use requires an alternate-day dosing schedule.
Severe Renal Impairment Restricted Use Use requires an alternate-day dosing schedule.
Breastfeeding Women Not Recommended The drug is known to be excreted in breast milk.
Pregnant Women Use Preferred to Avoid Recommended as a precautionary measure.

Additionally, patients diagnosed with certain metabolic disorders, such as galactose intolerance or Lapp lactase deficiency, must avoid specific Eladin tablet formulations due to the presence of excipients like lactose. Approved use is standard for adults and children aged 6 years and older; children aged 2 to 5 years are approved, typically requiring the liquid formulation.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Eladin (Loratadine) documents interaction patterns primarily related to its metabolism. The drug is processed mainly by the hepatic enzymes CYP3A4 and CYP2D6. This metabolic pathway makes Loratadine susceptible to interactions with medicinal products that inhibit these enzymes.

Specific interacting medicines officially listed in regulatory documents include Ketoconazole, Erythromycin, and Cimetidine. Co-administration with these agents substantially increases the plasma concentrations of Loratadine and its active metabolite. This pharmacokinetic interaction is classified as exposure-modifying. However, controlled regulatory studies found no associated clinically significant adverse changes in vital parameters from these interactions.

A mandatory procedural constraint requires the product to be discontinued for at least 48 hours prior to scheduling diagnostic allergy skin tests. This timing separation is required because antihistamines may interfere with dermal reactivity indices, potentially causing false-negative test results. In contrast, co-administration with alcohol has been officially assessed in controlled studies and showed no potentiating effects on psychomotor performance. A population-specific interaction note advises that patients with severe hepatic impairment may have reduced drug clearance, resulting in a higher systemic exposure to Loratadine.

Mechanism of Action

Eladin's mechanism involves targeting specific signaling mechanisms. Its action involves the modulation of core inflammatory and sensory pathways, influencing associated physiological responses.

Blocking the Histamine-1 Receptor

Eladin acts as a selective antagonist for the peripheral H1 histamine receptor. By competitively binding to this receptor, the drug prevents naturally released histamine from triggering the cascade that leads to activation of downstream cellular and vascular events. This functional blockade occurs primarily in peripheral systems.

Inhibiting the Molecular Cascade

The drug's interaction with the H1 receptor arrests the molecular signaling sequence initiated by histamine, preventing the resulting intracellular changes. This targeted interference modifies early molecular steps that shape downstream systemic outcomes, influencing activation patterns within the pathway.

Modulating Vascular and Neural Responses

The mechanism involves the functional blockade of activity resulting from excessive histamine binding on microvessels and sensory nerves. This action modulates microvascular permeability and dampens sensory input, which results in altered physiological responses such as diminished fluid extravasation from microvasculature and modified sensory nerve fiber activation.

Dosage and Administration Information

How to Use Eladin (Loratadine): Administration Guidelines

The administration of Eladin (Loratadine) is characterized by specific parameters to ensure consistent application. The route of administration for all available forms—which include 10 mg oral tablets, chewable tablets, orally disintegrating tablets, and 5 mg/5 mL oral syrup—is oral ingestion.

The standard dosing regimen for adults and adolescents weighing over 30 kg is 10 mg taken once daily. This frequency is established because the drug provides long-acting support, and the standard dose of 10 mg is the maximum allowed within a 24-hour period. The tablet formulation may be ingested without regard to mealtime, offering flexibility in its daily timing. For liquid forms, guidance emphasizes the need for accurate measurement to ensure the dose is delivered as intended.

Specific population-based dose modifications are utilized for certain usage contexts. Patients identified with severe hepatic impairment (liver dysfunction) or severe renal impairment (kidney dysfunction, GFR less than 30 mL/min) initiate the standard dose on an every-other-day schedule. Furthermore, a procedural constraint exists where the administration of the medicine must be discontinued for a minimum of 48 hours before a patient undergoes any allergy skin testing, as this ensures the accuracy of the diagnostic results.

Recent Clinical Evidence

Recent Clinical Evidence for Eladin

Clinical research involving Eladin (or related experimental treatments, such as ELAD® or studies named ALADDIN) has focused primarily on two major areas: managing liver failure and exploring its role in certain chronic diseases.

Liver Support Systems

Extracorporeal Liver Assist Device (ELAD®) studies have investigated the device's ability to support subjects with acute alcoholic hepatitis or alcohol-induced liver decompensation. The primary focus of these trials is to evaluate safety and efficacy with respect to overall survival over a defined period (e.g., 91 days). Secondary measures typically include the ability of the system to stabilize or slow the progression of liver function deterioration, often measured using the Model for End-Stage Liver Disease (MELD) score. These studies are critical for assessing the potential of bridging therapy in patients awaiting transplant or liver recovery.

Exploration in Chronic Diseases

Other research, such as the ALADDIN trials (which, depending on the context, refer to studies of Octreotide-LAR or Darolutamide), suggests ongoing investigation into the drug’s potential impact on different conditions:

Research Focus Primary Endpoint Example (Non-Specific)
Polycystic Kidney Disease (ADPKD) Slowing of total kidney volume (TKV) growth.
Prostate Cancer (PC) Evaluation of failure-free survival (FFS) when added to standard therapy.

These exploratory trials examine whether Eladin or related compounds are associated with a slower disease progression or improved intermediate outcomes compared to existing treatment protocols. Results from these trials generally indicate that the study compound was associated with a favorable effect on the assessed deficits or biomarkers, though the interpretation of clinical significance requires consideration of study design and duration.

Frequently Asked Questions (FAQ)

Common questions about Eladin (FAQ)

Q: Is Eladin the same kind of drug as [Similar Drug Name]?

Eladin is classified as a second-generation antihistamine. This class of medicine is described in official documents as having a selective action on peripheral histamine receptors. This specific action is associated with a lower potential for causing sedation compared to older types of antihistamines.

Q: Is it necessary to take Eladin every day?

The official dosing instructions indicate that the standard regimen is to take one dose daily for the temporary relief of symptoms. Regulatory documents state that the daily dose should not be exceeded within a 24-hour period.

Q: Is Eladin generally safe for older adults?

Official studies indicate that the way the drug is processed by the body (its activity) is comparable in healthy older adults (geriatric volunteers) and healthy younger adults. However, if a patient has severe liver or kidney problems, the official instructions require a modified dosing schedule.

Q: Are there any long-term safety studies on Eladin?

Regulatory documents refer to clinical trials, some lasting up to 28 days, that focused on general safety. These studies reported no clinically significant changes in vital signs, laboratory test values, or heart monitoring (EKG) during treatment at the recommended dosage.

Q: Is Eladin a maintenance medication or used short-term?

The official product labeling indicates that Eladin is meant for the temporary relief of allergy symptoms. Its long-acting nature means it is dosed once daily to manage symptoms as they occur or for the duration of the allergy season.

Q: Does Eladin cause any noticeable changes in mood or behavior?

Reported adverse effects include nervousness (uncommon) and drowsiness (somnolence). Official information suggests that Eladin has a low potential for affecting the central nervous system at recommended doses.

Q: What does the FDA / EMA say about the effectiveness of Eladin?

Regulatory bodies indicate that Eladin is effective for the temporary relief of symptoms associated with hay fever and other upper respiratory allergies. This includes common symptoms like sneezing, a runny nose, and itchy, watery eyes.

Q: How is Eladin different from other medicines in its class?

Eladin is a second-generation antihistamine. Compared to older, first-generation compounds, this class is known for having a reduced sedative profile and fewer anticholinergic side effects (such as dry mouth and blurred vision).

Q: What are the ingredients in Eladin besides the active one?

The active ingredient is Loratadine. The inactive ingredients (excipients) vary by the specific product form (tablet, syrup, etc.). For standard tablets, these may include common substances such as lactose monohydrate, corn starch, magnesium stearate, and colloidal silicon dioxide.

Q: What are the initial expectations when starting Eladin therapy?

Official information indicates that the antihistamine effects are typically observed within 1 to 3 hours after a single dose. Peak relief from symptoms generally occurs between 8 to 12 hours after ingestion.

Q: What studies exist comparing Eladin to a placebo?

Clinical efficacy studies have been conducted to evaluate the drug's performance. These studies indicated that the recommended once-daily dose was superior to placebo in managing the symptoms of allergic rhinitis and chronic idiopathic urticaria.

Q: Can Eladin affect laboratory test results?

Official guidance indicates that Eladin can interfere with a specific diagnostic procedure. The medication should be stopped several days before any planned allergy skin-prick tests, as its presence may lead to inaccurate (false-negative) results.

Q: Can Eladin be split or crushed?

The proper administration depends on the specific product formulation. Some forms, like orally disintegrating tablets (ODT) or chewable tablets, have specific instructions for how they are to be consumed. Other forms, such as liquid-filled capsules, are generally indicated to be swallowed whole.

Q: Does Eladin interact with common pain relievers like ibuprofen?

Official drug interaction checkers typically find no known interaction between the active ingredient in Eladin and common non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen.

Q: What happens if I forget to take a dose of Eladin?

The official instructions advise against making up for a missed dose. If you forget to take your dose, regulatory sources state to not take a double dose at one time.

Q: How long does Eladin typically stay in your system?

The body processes the drug over time. The mean elimination half-life for the active metabolite, which provides the clinical effect, is approximately 28 hours (with a wide range across individuals).

Q: Can Eladin affect my ability to drive or operate machinery?

Official patient information suggests that individuals should determine their response to the medication before driving or operating complex machinery. While the drug has a generally low sedative profile, a small number of patients may still experience drowsiness.

Q: Is Eladin a controlled substance or habit-forming?

The medication is not classified as a controlled substance in the United States. According to the FDA, the drug has a DEA Schedule of None.

Q: Does Eladin require special monitoring or blood tests?

No routine laboratory monitoring is typically mentioned in official documents for use at the recommended dosage. Studies have shown no clinically significant changes in laboratory values during extended treatment.

Q: Can Eladin be taken with high blood pressure medication?

Formal drug interaction studies listed in the regulatory documents are limited to certain antifungal and antibiotic agents. The official label does not specify any known interactions with common high blood pressure medications.

Q: Are there any reported drug-herbal supplement interactions with Eladin?

Official medical information advises caution with any herbal remedies that are known to cause sleepiness or a dry mouth. This caution is due to the potential for increasing similar side effects that may occur with Eladin.

Q: How long after stopping Eladin will its effects wear off?

The elimination half-life for the active component is approximately 28 hours. This long duration means that the medicine takes several days to be fully cleared from the body after the last dose.

Q: Can Eladin be taken with anxiety or sleep medication?

Official documents state that caution is needed when combining Eladin with other medications that cause CNS depression (such as certain anxiety or sleep medications). This is due to the potential for additive sedative effects.

Q: Can Eladin interfere with birth control pills?

Official regulatory advice from authoritative bodies states that Eladin will not affect the function of any type of hormonal contraception, including the combined pill or progestogen-only pill.

Q: Does Eladin have a 'black box warning' in the US?

The medication is sold as an over-the-counter (OTC) drug. According to the FDA, the product does not carry an FDA Boxed Warning (commonly referred to as a Black Box Warning).

Q: Is it okay to stop taking Eladin suddenly?

The medication is intended for the temporary relief of symptoms. Regulatory documents do not mention any need for a tapering schedule or concern regarding adverse effects from sudden discontinuation.

Q: How do regulatory bodies classify the safety of Eladin?

Regulatory bodies classify the medication as an Over-the-Counter (OTC) human drug. This classification generally indicates that the product is considered appropriate for use by consumers without a prescription, when used according to the labeled instructions.

How should Eladin be stored and disposed of?

Storage of Eladin

Eladin should be stored at room temperature and kept away from excessive heat and moisture. Do not store it in the bathroom. The medication must be kept in its original container, tightly closed, and out of the sight and reach of children and pets to prevent accidental ingestion. Ensure all tablets or capsules remain dry, as moisture can affect their potency.


Disposal of Unused Eladin

Do not dispose of this medication by flushing it down a toilet or pouring it into a drain unless specifically instructed to do so by a healthcare professional or an official medication guide. The preferred method for safe disposal of unused or expired Eladin is through a drug take-back program or a community-based drug disposal program. If a take-back program is not available, you may dispose of it in your household trash after mixing the medication with an unappealing substance, such as dirt, cat litter, or used coffee grounds. Place the mixture in a sealed bag or container before discarding it to ensure it is not recognizable to others.

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

Available in countries:

Equivalent of Eladin found in:

A-Z Index: