Letizen

Cetirizine, the active ingredient in Letizen, is a second‑generation antihistamine presented as an oral tablet for oral use. It is used to relieve symptoms of allergic rhinitis and urticaria in both adults and children.

GNH USA supplies Letizen as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Letizen, a second‑generation antihistamine, acts on histamine‑mediated allergic conditions.

Allergic rhinitis: reduces nasal congestion, sneezing, itching and watery discharge. Urticaria (hives): alleviates itching and diminishes wheal formation.

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

Common Side Effects: - Drowsiness: mild sedation may be experienced. - Headache: occasional tension‑type headache. - Dry mouth: reduced salivation. - Fatigue: feeling of tiredness.

Serious or Rare Side Effects: - Stevens‑Johnson syndrome: severe skin reaction. - Angioedema: swelling of face, lips or tongue. - Anaphylaxis: rare systemic allergic reaction.

Before using Letizen, consider the following safety points.

Use in children: follow prescriber guidance for age‑appropriate dosing. Concurrent CNS depressants: may increase sedation. Liver impairment: dose adjustment may be required. Pregnancy and breastfeeding: consult a healthcare professional. Driving or operating machinery: caution due to possible drowsiness. Store at ambient temperature below 25°C: keep in the original pack, protect from moisture.

Cetirizine may interact with other medicines; review the following.

Major Interactions (Avoid): - Alcohol: enhances sedative effect. - CNS depressants (e.g., benzodiazepines): may increase drowsiness. - Ritonavir: can raise cetirizine plasma levels.

Moderate Interactions (Monitor Closely): - Antacids containing aluminum or magnesium: may reduce absorption. - Strong CYP3A4 inhibitors (e.g., erythromycin): may modestly increase levels. - Digoxin: possible increase in serum concentration.