Product image of Loratadine Activase Pharmaceuticals (Loratadine) supplied by GNH India

Loratadine Activase Pharmaceuticals

Active Ingredient:
Loratadine
Origin:
EU

Loratadine Activase Pharmaceuticals (Loratadine)

Loratadine, the active ingredient in Loratadine Activase Pharmaceuticals, is a second‑generation H1 antagonist presented as an oral tablet for oral use. It alleviates symptoms of allergic conditions such as sneezing, itching, watery eyes, and hives in adults and children over the approved age, and is indicated for the relief of seasonal and perennial allergic rhinitis as well as chronic idiopathic urticaria.

GNH India supplies Loratadine Activase Pharmaceuticals as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, with established distribution networks across Europe, Asia and the Americas.

Manufacturer / TM Owner

Activase Pharmaceuticals Limited

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Indications & Clinical Uses

Loratadine, a second‑generation antihistamine, blocks peripheral H1 receptors involved in allergic pathways to provide symptom relief across several common allergy conditions.

  • Allergic rhinitis: reduces nasal congestion, sneezing, itching, and watery discharge, improving daily comfort.
  • Seasonal allergic rhinitis: controls symptoms triggered by pollen or mold, helping maintain normal activities during allergy seasons.
  • Chronic idiopathic urticaria: diminishes the frequency and severity of hives and associated itching, providing longer periods of symptom‑free relief.
  • Allergic conjunctivitis: alleviates eye itching and redness caused by allergens.

How It Works

  • Loratadine selectively antagonizes peripheral H1 histamine receptors without readily crossing the blood‑brain barrier. By binding to the H1 receptor, it prevents histamine from triggering the cascade that leads to vasodilation, increased vascular permeability, and sensory nerve stimulation, thereby reducing itching, swelling, and mucus production associated with allergic responses. Its high affinity for the receptor and rapid onset of action provide effective, non‑sedating relief.

Side Effects

Loratadine is generally well tolerated, but some users may experience adverse reactions.

Common Side Effects

  • Headache: mild to moderate pain often transient.
  • Dry mouth: sensation of reduced salivation.
  • Fatigue: feeling of tiredness without exertion.
  • Drowsiness: occasional mild sleepiness, less common than first‑generation antihistamines.

Serious or Rare Side Effects

  • Anaphylaxis: severe allergic reaction requiring immediate medical attention.
  • Stevens‑Johnson syndrome: rare skin disorder with blistering and detachment.
  • Hepatotoxicity: signs of liver injury such as jaundice or elevated enzymes.

Precautions & Warnings

Before using loratadine, consider the following precautions to ensure safe and effective therapy.

  • Hepatic impairment: dose may need adjustment in patients with severe liver disease.
  • Renal impairment: use with caution in severe kidney dysfunction.
  • Known hypersensitivity: avoid if you have experienced allergic reactions to loratadine or similar antihistamines.
  • Pregnancy: safety has not been established; discuss risks with a healthcare provider.
  • Breastfeeding: limited data; weigh potential benefits against possible infant exposure.
  • Store at ambient temperature: keep below 25 °C, retain in original packaging, protect from moisture and direct sunlight.

Avoid Interactions

Loratadine may interact with other medicines; awareness of significant interactions helps prevent reduced efficacy or increased toxicity.

Major Interactions (Avoid)

  • Ketoconazole: strong CYP3A4 inhibition can increase loratadine plasma levels.
  • Erythromycin: macrolide antibiotic that may raise loratadine concentrations.
  • Azithromycin: may elevate loratadine exposure, increasing risk of side effects.

Moderate Interactions (Monitor Closely)

  • Alcohol: can enhance drowsiness and impair coordination.
  • CNS depressants: additive sedative effects may occur.
  • Other antihistamines: combined use may increase anticholinergic burden.

Frequently Asked Questions

It is an over‑the‑counter second‑generation antihistamine indicated for relief of symptoms associated with allergic rhinitis (both seasonal and perennial) and chronic idiopathic urticaria. It works by blocking peripheral H1 receptors, reducing itching, sneezing, nasal congestion and hives. It is supplied in oral tablet form for adult and pediatric use as directed by a healthcare professional.

Loratadine selectively binds to peripheral H1 histamine receptors, preventing histamine from attaching and activating the receptor cascade that leads to vasodilation, increased vascular permeability, and sensory nerve stimulation. Because it does not readily cross the blood‑brain barrier, it provides antihistaminic effects without significant sedation. This antagonism reduces the classic allergy symptoms of itching, swelling, and mucus production.

The appropriate dose of loratadine is determined by the prescribing healthcare professional based on the patient’s age, condition and clinical response. In most regions, adults and children over a certain age are advised to take one tablet once daily, while pediatric dosing may differ. Patients should follow the specific instructions provided on the label or by their clinician and should not adjust the dose without medical advice.

Safety data for loratadine in pregnancy are limited, and it is classified as a category where the benefits and risks must be weighed by a healthcare provider. For breastfeeding mothers, only small amounts are excreted in milk, and the decision to use loratadine should consider potential effects on the infant. Consultation with a physician or obstetrician is recommended before starting therapy.

To request a supply, visit the product page on gnhindia.com, enter the desired quantity, and submit the enquiry form. GNH India works with hospitals, pharmacies and procurement teams worldwide, reviewing trade or institutional credentials before providing a quotation. The sales team will then respond with pricing, availability, shipping details (including any required temperature control) and assistance with import documentation.

Compared with first‑generation antihistamines such as diphenhydramine, loratadine offers similar efficacy in relieving allergy symptoms but with considerably less sedation because it minimally penetrates the central nervous system. Among second‑generation agents, its potency and duration of action are comparable to cetirizine and fexofenadine, making it a suitable option for patients who need non‑sedating relief for daily activities.

Loratadine tablets should be stored at ambient temperature, preferably below 25 °C (77 °F). Keep the product in its original container, protect it from moisture, excessive heat and direct sunlight. Do not store in bathrooms or near kitchen appliances that generate steam. Proper storage helps maintain tablet integrity and potency throughout its shelf life.

Loratadine is taken orally, usually as a whole tablet swallowed with a glass of water. It can be taken with or without food, and the tablet should not be chewed or crushed unless specifically instructed by a pharmacist. The medication is intended for once‑daily dosing, and patients should adhere to the schedule prescribed by their healthcare provider for optimal symptom control.

Although rare, serious adverse reactions can occur, including anaphylaxis, severe skin reactions such as Stevens‑Johnson syndrome, and liver injury manifested by jaundice or elevated liver enzymes. Patients experiencing difficulty breathing, swelling of the face or throat, widespread rash, or signs of hepatic dysfunction should seek immediate medical attention. Prompt reporting of any severe symptoms helps ensure appropriate management.

Loratadine should be avoided by individuals with a known hypersensitivity to loratadine, other antihistamines, or any of the tablet’s excipients. It is also contraindicated in patients who have experienced severe reactions such as anaphylaxis to similar drugs. Children below the approved minimum age and patients with certain severe hepatic or renal impairments should not use loratadine without medical supervision.

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GNH India Pharmaceuticals Limited

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Last updated:

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