Advertisements

Loratadine Teva

Quick links to important sections

Loratadine Teva

Advertisements

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.

Advertisements

Overview of Loratadine Teva

Loratadine Teva is a synthetic pharmaceutical preparation defined by the single active ingredient Loratadine (INN), which is fundamentally an effective, non-sedating anti-allergic agent. Its primary function is to provide relief from the physical manifestations of allergic responses.

Property Description
Active ingredient Loratadine (INN)
Form Oral tablet
Pharmacological class Selective peripheral H1-receptor antagonist (Antihistamine)
Common use Symptomatic relief of allergic response
Origin Synthetic, Second-generation

What Type of Medicine is Loratadine Teva?

Loratadine Teva is classified pharmacologically as a selective peripheral H1-receptor antagonist, placing it within the therapeutic group of anti-allergic antihistamines. Loratadine is a potent, long-acting antihistaminic compound with high selectivity for these peripheral receptors. As a second-generation agent, Loratadine, which is a tricyclic antihistamine derivative, is structurally distinct from older classes.

This structural difference is the reason Loratadine avoids the significant sedation and psychomotor impairment common with first-generation drugs, making it suitable for individuals who need to maintain alertness throughout the day.

Loratadine: The Active Ingredient and Formulation

The core therapeutic component is the single chemical entity, Loratadine. This medicine is a generic medicine offered by Teva, a major pharmaceutical manufacturer. Loratadine is a pro-drug that undergoes rapid metabolism in vivo to its major active form, desloratadine, which is responsible for the drug’s sustained clinical effect. Loratadine Teva is typically supplied for oral use as a solid tablet formulation, consisting of the active ingredient combined with inert excipients necessary to form the final stable dosage unit.

General Purpose of this Anti-Allergic Agent

The general purpose of the medicine is to provide symptomatic relief by interrupting the body's allergic response through H1-receptor blockade. When allergens trigger the immune system, the resulting release of the chemical histamine activates these receptors, leading to characteristic symptoms. By acting as a competitive antagonist, Loratadine prevents this activation, helping to mitigate the body's unwanted symptomatic response, thereby promoting comfort and function.

Regulatory References

  1. NIH: Antihistamines Overview
Advertisements

What side effects are possible with Loratadine Teva?

Possible Side Effects and Safety Information

This section details the officially documented adverse reactions and safety characteristics for Loratadine, based strictly on government regulatory documents such as the FDA Prescribing Information and the EMA Summary of Product Characteristics (SmPC). The information is organized by the frequency and organ system affected.


Documented Adverse Reactions by Frequency

Adverse reactions are classified according to incidence rates observed in clinical trials and post-marketing surveillance.

Frequency Category Representative Adverse Reactions
Common (ge 1/100 to <1/10) Headache, Somnolence (Drowsiness), Fatigue (Tiredness).
Uncommon (ge 1/1,000 to <1/100) Increased appetite, Insomnia (Difficulty sleeping).
Very Rare (<1/10,000) Tachycardia (rapid heartbeat), Palpitation, Convulsion, Nausea, Abnormal hepatic function, Rash, Alopecia.
Frequency Not Known Weight increased.

Serious Adverse Reactions and Safety Constraints

Serious Adverse Reactions officially listed under the Very Rare category include systemic Hypersensitivity Reactions, specifically Angioedema and Anaphylaxis, and Abnormal Hepatic Function.

Population-Specific Safety Considerations

  • Severe Hepatic Impairment: Caution is advised due to potential for reduced clearance.
  • Pregnancy and Breast-feeding: Use is generally not recommended as a precautionary measure.
  • Pediatric: Safety and efficacy have not been established in children younger than 2 years of age.

Safety-Related Restrictions

The medicine is contraindicated in patients with known hypersensitivity to the active substance or excipients. Furthermore, the use of Loratadine must be discontinued at least 48 hours before skin allergy testing to avoid interference with test results.

Advertisements

Overdose and Emergency Response

Overdose and when to seek help

This information details the officially documented overdose profile of Loratadine, based strictly on government regulatory prescribing information.


Overdose Manifestations and Response

Domain Official Regulatory Statement
Documented Manifestations Clinical signs reported with ingestion of excessive doses include somnolence (drowsiness), tachycardia (rapid heartbeat), and headache.
Required Action In the event of overdosage, seek medical help or contact a Poison Control Center right away.

Management and Monitoring Requirements

Loratadine overdose is managed through symptomatic and supportive treatment. Regulatory guidance advises considering standard measures to reduce absorption, such as the administration of activated charcoal as a slurry with water, and gastric lavage. No specific antidote is known for Loratadine overdosage.

Therefore, medical monitoring of the patient must be continued after emergency procedures. Severe outcomes, such as palpitations and extrapyramidal signs, have been reported, particularly in children following overdosage, necessitating careful observation. Loratadine is known to be largely unaffected by hemodialysis.

The official regulatory profile requires immediate help-seeking when overdosage is suspected, reflecting the need for prompt supportive intervention and sustained professional observation.

Advertisements

Therapeutic Uses of Loratadine Teva

What Loratadine Teva Treats: Main Uses and Benefits

The primary role of Loratadine Teva is to provide supportive symptomatic relief for conditions related to systemic imbalance caused by common allergens. It is commonly used to help manage symptoms related to inflammatory or irritative states affecting the respiratory tract and skin.

Symptomatic Domains and Clinical Scenarios

Loratadine Teva is commonly used to help with symptoms associated with allergic rhinitis (hay fever), including both seasonal and perennial types, and for allergic skin reactions such as urticaria (hives). The medication is relevant for easing symptoms that interfere with daily comfort, such as frequent sneezing, bothersome runny nose, the disruptive itching and watering of the eyes, and the distressing skin itching (pruritus). Applied in scenarios where additional management of discomfort is required, it helps address symptom clusters that may become intense or disruptive.

“The therapeutic benefit offers symptomatic relief that generally helps patients cope more steadily with difficult episodes.”

Used in conditions characterized by periods of heightened symptoms, it may assist with maintaining functional stability during symptomatic periods.


Quick Fact: Relief for Allergic Discomfort

Indication Focus Symptom Type Key Benefit
Respiratory/Ocular Symptoms related to inflammatory or irritative states Contributes to easing the overall symptom burden.
Dermatologic Symptoms associated with acute or episodic changes Helps improve day-to-day comfort during symptomatic periods.
Functional Symptoms that interfere with daily functioning May assist with maintaining functional stability.
Advertisements

Eligibility and Restrictions for Use

Who Can and Cannot Use Loratadine Teva? Official Regulatory Information

The eligibility for Loratadine Teva is strictly defined by regulatory authorities based on age, physiological status, and underlying health conditions.

Contraindications and Restrictions

Category Regulatory Status
Absolute Contraindication Contraindicated for patients with known hypersensitivity to loratadine or any excipients, and those with rare hereditary problems like galactose intolerance or lactase deficiency.
Pediatric Use Not recommended for children under 2 years of age as safety and efficacy have not been established. The 10 mg tablet is generally not appropriate for children under 6 years or those weighing 30 kg or less.
Liver Function Use with caution in patients with severe hepatic impairment, often requiring regulatory caution and a lower starting dose or alternate-day dosing regimen.
Pregnancy and Lactation Preferable to avoid during pregnancy as a precautionary measure. Not recommended for women who are breastfeeding as loratadine is excreted in breast milk.
Pre-Procedure Restriction Use must be discontinued 48 hours prior to allergy skin testing to prevent false negative results.

Adults and adolescents 12 years of age and older, and children over 6 years weighing more than 30 kg, are typically the established-use population for this medicine.

Advertisements

What should I know about interactions with other medicines?

Interactions with other medicines and products

Documented Pharmacokinetic Interactions

The official regulatory profile notes that Loratadine undergoes first-pass metabolism primarily via the cytochrome P450 enzymes CYP3A4 and CYP2D6. This metabolic pathway forms the basis for potential pharmacokinetic interactions with enzyme inhibitors.

Co-administration with inhibitors of these enzymes, specifically Ketoconazole, Erythromycin, and Cimetidine, was associated with substantially increased plasma concentrations of Loratadine in controlled studies. The regulatory findings specified that these increases occurred without documented clinically significant changes.

Other Administration Constraints

Interaction Type Interacting Substance/Condition Official Regulatory Statement
Drug-Food Interaction Food (concurrent ingestion) Results in an increased systemic bioavailability (AUC) and a slight delay in absorption, a change noted to occur without influencing the clinical effect.
Drug-Alcohol Interaction Alcohol Has no potentiating effects as measured by psychomotor performance studies.
Procedural Restriction Dermal Reactivity (Skin) Tests Administration must be discontinued at least 48 hours before testing to avoid interference with the diagnostic results.
Population Note Severe Liver Impairment A risk of drug accumulation is noted due to reduced metabolic clearance in this patient population.
Advertisements

Mechanism of Action

Selective Peripheral H1 -Receptor Blockade

Loratadine is rapidly metabolized into its active form, Desloratadine, which functions as a competitive antagonist against the Histamine H1 -Receptor. This core mechanism involves binding to and occupying the receptor site on peripheral cells, thereby suppressing the initiation of the H1-mediated molecular signaling cascade by the endogenous chemical messenger, histamine.


Modulation of Vascular and Smooth Muscle Response

The H1 -receptor blockade directly influences systems where histamine causes physical changes. It prevents the histamine-driven increase in vascular permeability, maintaining the integrity of blood vessel walls and restricting the efflux of plasma fluid into tissues. Additionally, this action mitigates the hyper-activation of smooth muscle cells and the undue stimulation of sensory neurons by histamine.


Mechanistic Isolation to Peripheral Systems

The drug's chemical structure confers peripheral selectivity, resulting in minimal penetration of the blood-brain barrier (BBB) and reduced interaction with central H1 -receptors. This mechanistic isolation ensures the drug's activity is focused on modulating histamine-driven processes in the body's periphery, while minimizing the modulation of CNS function.

Advertisements

Dosage and Administration Information

Official Administration Guidelines

Loratadine Teva is a medication exclusively for oral use, typically supplied as a 10 mg tablet, and must be administered according to specific regulatory principles. The standard dosing regimen is once daily, and the tablet can be taken with or without food.


Standard Labeled Dosing

The following dosages and schedules are defined in official prescribing information for the 10 mg strength tablet:

Population Standard Dose and Frequency Maximum Daily Dose
Adults and Adolescents (12 years and older) 10 mg once daily 10 mg
Children (6–12 years, >30 kg) 10 mg once daily 10 mg
Children (2–5 years of age) 5 mg once daily (using a suitable liquid form) 5 mg

Dosing Adjustments for Specific Populations

Official labels advise a modified schedule for certain patient groups to manage drug clearance:

  • Severe Hepatic Impairment: For adults and children weighing more than 30 kg, an initial dose of 10 mg every other day is recommended.
  • Severe Renal Insufficiency: For adults and children 6 years of age and older with a glomerular filtration rate (GFR) less than 30 mL/min, the recommended initial dose is 10 mg every other day.

Procedural Constraints

The most important constraint related to the proper use of loratadine is its effect on diagnostic testing. The medicine must be discontinued for at least 48 hours before any scheduled allergy skin tests to prevent the antihistaminic effect from interfering with the test results. If a dose is missed, regulatory information advises taking the dose as soon as remembered, but instructs patients not to take two doses to compensate for the missed one.

Advertisements

Recent Clinical Evidence

Overview of Clinical Research

Loratadine is classified as a second-generation antihistamine, an agent that acts primarily by selectively blocking peripheral histamine H1 receptors in the body. This action aims to prevent histamine from triggering symptoms commonly associated with allergic reactions, such as itching, sneezing, and watery eyes. Its design is intended to minimize penetration into the central nervous system, contributing to its low potential for causing drowsiness compared to first-generation antihistamines.

Efficacy and Duration of Action

Clinical trials involving adults and adolescents with conditions like allergic rhinitis (e.g., hay fever) and chronic idiopathic urticaria (hives) have been conducted. In these studies, a 10 mg daily dose of loratadine was found to be more effective than placebo in relieving both nasal and non-nasal symptoms of allergic rhinitis, as well as managing associated itching and reducing the size and number of hives in urticaria. The drug is known for its relatively long duration of action, with antihistamine effects typically observed to last in excess of 24 hours, supporting once-daily administration.

Safety and Tolerability Profile

The most frequent adverse events reported in clinical trials for the 10 mg daily dose, at an incidence rate slightly higher than placebo, included somnolence (drowsiness), headache, increased appetite, and fatigue. Overall, the frequency of adverse reactions across a range of indications for loratadine was reported to be low. Studies evaluating driving performance found no impairment in patients receiving loratadine at the recommended dose. In children aged 2 through 12 years, the most commonly reported events included headache, nervousness, and fatigue.

Advertisements

Frequently Asked Questions (FAQ)

Common questions about Loratadine Teva (FAQ)

Q: What is Loratadine Teva and what is it used for?

A: Loratadine Teva is a medication that contains the active substance loratadine. Loratadine belongs to a class of medicines called antihistamines (specifically, a second-generation, non-sedating antihistamine).

It is primarily used to relieve symptoms associated with allergic rhinitis (e.g., hay fever) and chronic idiopathic urticaria (chronic hives of unknown cause).

Q: How quickly does Loratadine Teva start working?

A: Loratadine Teva generally begins to relieve symptoms within one to three hours after taking the tablet. The peak effect, or when the full benefit of the dose is typically reached, occurs around four to eight hours after administration.

Because it is a long-acting treatment, the effects of a single dose usually last for 24 hours.

Q: Can Loratadine Teva be taken with food?

A: Yes, Loratadine Teva tablets can be taken with or without food. Taking the tablet with a meal may slightly delay the onset of action, but it will not affect the overall efficacy of the drug.

It is important to swallow the tablet whole with a glass of water.

Q: What is the recommended dosage for adults?

A: For most adults and adolescents aged 12 years and older, the typical dose is one 10 mg tablet once daily.

If you have severe liver impairment, a lower starting dose, such as one 10 mg tablet every other day, might be recommended by a healthcare professional. You should always follow the specific dosing instructions provided by your doctor or pharmacist.

Q: What are the common side effects of Loratadine Teva?

A: Loratadine Teva is generally well-tolerated. The most commonly reported side effects in adults and children over 12 include:

  • Headache
  • Drowsiness (somnolence)
  • Fatigue (tiredness)
  • Dry mouth

These effects are usually mild. If you experience any severe or persistent side effects, you should consult your healthcare provider.

Q: Does Loratadine Teva interact with alcohol?

A: While loratadine is classified as a non-sedating antihistamine, it is generally recommended to avoid consuming large amounts of alcohol while taking this medication.

Combining alcohol with loratadine, particularly in high doses, may increase the risk of side effects like drowsiness, dizziness, and impaired mental alertness, though the interaction is typically minor compared to older antihistamines.

Advertisements

How should Loratadine Teva be stored and disposed of?

Official Storage and Disposal Requirements

Official regulatory documents define the mandatory conditions for storing and disposing of Loratadine Teva tablets.

Storage Conditions

The product is generally stable at room temperature, with some labeling stipulating storage at or below 30°C. It is mandatory to keep the medicine out of the sight and reach of children and to store it in the original package until use. The expiry date stated on the carton refers to the product's shelf-life when stored correctly.

Disposal Protocol

To protect the environment, official instructions strictly forbid throwing unused or expired Loratadine Teva away via household waste or wastewater. The required disposal method is to ask your pharmacist how to properly throw away medicines you no longer use, which typically involves returning them to an authorized collection point.

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

Available in countries:

Equivalent of Loratadine Teva found in:

A-Z Index: