Lertazin

Levocetirizine, the active ingredient in Lertazin, is an antihistamine presented as an oral tablet for oral administration. It works by blocking peripheral H1 histamine receptors, providing relief from allergic symptoms such as sneezing, nasal congestion, itching, and hives in adults and children diagnosed with allergic rhinitis or chronic idiopathic urticaria.

GNH USA supplies Lertazin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide, with manufacturing based in the EU and adherence to stringent quality and regulatory standards.

Levocetirizine is an antihistamine used to manage allergic conditions that involve H1‑mediated histamine release.

- Allergic rhinitis: reduces nasal congestion, sneezing, and itching associated with seasonal or perennial allergies. - Seasonal allergic rhinitis: provides symptom control during pollen seasons. - Chronic idiopathic urticaria: alleviates persistent hives and associated itching.

Levocetirizine is generally well tolerated, but some patients may experience adverse reactions.

Common Side Effects: - Drowsiness: mild to moderate sleepiness, especially at treatment initiation. - Dry mouth: reduced salivation leading to a dry oral cavity. - Headache: transient cranial discomfort. - Nausea: mild gastrointestinal upset.

Serious or Rare Side Effects: - Angioedema: swelling of face, lips, or tongue requiring immediate medical attention. - Severe skin reactions: such as Stevens‑Johnson syndrome or toxic epidermal necrolysis. - Anaphylaxis: rare systemic allergic reaction with potential airway compromise.

Before initiating therapy, consider the following safety measures.

- Assess renal function: dose adjustment may be required in severe renal impairment. - Use caution in hepatic disease: monitor liver enzymes if pre‑existing liver conditions exist. - Avoid concomitant CNS depressants: may increase sedation risk. - Monitor for hypersensitivity: discontinue if signs of rash, swelling, or difficulty breathing appear. - Pregnancy and lactation: consult a healthcare professional before use. - Store at ambient temperature: keep below 25 °C, retain in original packaging, and protect from moisture.

Levocetirizine may interact with other medicines; awareness of the interaction level helps manage risk.

Major Interactions (Avoid): - Alcohol: additive sedation and impaired alertness. - Central nervous system depressants (e.g., benzodiazepines): may cause excessive drowsiness. - Ketoconazole or other strong CYP3A4 inhibitors: can increase levocetirizine plasma concentrations.

Moderate Interactions (Monitor Closely): - Theophylline: may reduce antihistamine effectiveness. - Ritonavir: may modestly raise levocetirizine levels. - Anticholinergic agents: may exacerbate dry‑mouth side effect.