Lecisyn

Levocetirizine, the active ingredient in Lecisyn, is an antihistamine presented as an oral tablet for oral use. It selectively blocks peripheral H1 receptors to relieve symptoms of allergic rhinitis and chronic idiopathic urticaria in adults and children when appropriate. The medication is formulated for rapid absorption and is commonly prescribed for seasonal and perennial allergy symptoms.

GNH USA supplies Lecisyn as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies, clinics and healthcare institutions worldwide and regulatory compliant across multiple regions.

Levocetirizine is used to manage allergic conditions by antagonizing histamine activity.

Allergic rhinitis: reduces nasal congestion, itching, sneezing and watery discharge. Chronic idiopathic urticaria: alleviates wheals and itching associated with chronic hives. Seasonal allergic rhinitis: provides symptom relief during pollen seasons.

Levocetirizine is generally well tolerated, but adverse reactions can occur.

Common Side Effects: - Drowsiness or mild sedation - Dry mouth - Headache - Fatigue - Nausea - Altered taste perception

Serious or Rare Side Effects: - Angioedema or severe swelling of face, lips or throat - Anaphylactic reactions - Stevens‑Johnson syndrome or toxic epidermal necrolysis - Hepatic dysfunction - Hematologic abnormalities such as neutropenia - Severe skin rash or urticaria worsening

Before initiating therapy, consider the following safety measures.

Renal function assessment: adjust dose in patients with impaired renal clearance. Known hypersensitivity: avoid if patient has previous allergic reaction to levocetirizine or other piperazine antihistamines. Sedation risk: caution when operating machinery or driving until individual response is known. Pregnancy and lactation: use only if benefits outweigh potential risks after medical evaluation. Drug interactions: review concomitant medications for additive CNS depression. Store at below 25°C: keep in original packaging, protect from moisture.

Levocetirizine may interact with other medicines; monitoring is advised.

Major Interactions (Avoid): - Concurrent use with other H1 antihistamines: may increase risk of sedation and anticholinergic effects. - Alcohol or CNS depressants: can potentiate drowsiness. - Strong CYP3A4 inhibitors (e.g., ketoconazole): may raise plasma levels, though effect is limited.

Moderate Interactions (Monitor Closely): - Erythromycin or azithromycin: may modestly increase levocetirizine exposure. - Theophylline: monitor for enhanced CNS effects. - Cimetidine: may slightly raise levocetirizine concentrations.