Nossin (Levocetirizine Dihydrochloride)

Levocetirizine dihydrochloride, the active ingredient in Nossin, is an antihistamine presented as an oral dosage form for oral use. It is indicated for the relief of symptoms associated with allergic rhinitis and chronic idiopathic urticaria in adults and children. GNH USA supplies Nossin as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Levocetirizine is used to manage allergic conditions by blocking peripheral H1 receptors. - Allergic rhinitis: reduces nasal congestion, sneezing, itching and watery eyes. - Chronic idiopathic urticaria: alleviates hives and associated itching, improving patient comfort.

Adverse reactions may occur with levocetirizine use.

Common Side Effects: - Drowsiness: mild to moderate sedation, especially at treatment initiation. - Headache: transient, often resolves without intervention. - Dry mouth: reduced salivation leading to mild discomfort. - Fatigue: general tiredness not related to activity level. - Nausea: occasional stomach upset.

Serious or Rare Side Effects: - Angioedema: swelling of face, lips, or tongue requiring urgent care. - Severe rash or Stevens‑Johnson syndrome: extensive skin involvement. - Anaphylaxis: rapid onset of systemic allergic reaction. - Thrombocytopenia: low platelet count, may present with bruising. - Hepatic injury: abnormal liver function tests, rarely symptomatic.

Before prescribing levocetirizine, consider patient‑specific factors and safety measures. - Pregnancy: consult a healthcare professional; risk‑benefit assessment is required. - Breastfeeding: use with caution; monitor infant for possible effects. - Renal impairment: dose adjustment may be necessary in reduced kidney function. - Hepatic impairment: monitor liver enzymes, especially in severe disease. - Driving and machinery: avoid operating heavy equipment if drowsiness occurs. - Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Levocetirizine may interact with other substances that influence sedation or metabolism.

Major Interactions (Avoid): - Alcohol: additive central nervous system depression, increasing drowsiness. - Other antihistamines: risk of excessive sedation and anticholinergic effects. - CNS depressants (e.g., benzodiazepines): may potentiate sedation.

Moderate Interactions (Monitor Closely): - CYP3A4 inhibitors (e.g., ketoconazole, erythromycin): may raise levocetirizine plasma levels. - Theophylline: potential for increased theophylline concentrations, requiring monitoring.