Letizen S (Cetirizine Dihydrochloride)

Cetirizine is a selective H1‑receptor antagonist. By blocking peripheral H1 receptors on mast cells and basophils, it prevents histamine from binding, thereby reducing vasodilation, increased vascular permeability, and the resulting allergic symptoms such as itching and swelling.

The appropriate dose of Letizen S is determined by a prescriber based on the patient’s age, condition, and clinical response. Healthcare professionals tailor the regimen to achieve optimal symptom control while minimizing potential side effects.

Cetirizine is classified as Pregnancy Category B, indicating no evidence of risk in animal studies, but human data are limited. It is excreted in small amounts in breast milk, so a healthcare provider should evaluate the benefit‑risk balance before use in pregnant or nursing women.

To place an order, submit an enquiry on the Letizen S product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies, and procurement teams worldwide, confirming trade or institutional credentials before providing pricing, availability, shipping details, and any necessary import documentation.

Letizen S (cetirizine) is a second‑generation antihistamine offering effective allergy relief with a lower incidence of sedation compared with first‑generation agents like diphenhydramine. Compared with other second‑generation drugs such as loratadine, cetirizine may provide slightly faster onset of action for some patients.

Letizen S should be stored at ambient temperature below 25 °C. Keep the tablets in the original packaging, protect them from moisture, excessive heat, and direct sunlight to maintain stability and potency throughout the shelf life.

Letizen S is taken orally, usually with a glass of water. The tablet can be swallowed with or without food, unless the prescriber advises otherwise. Patients should follow the dosing instructions provided by their healthcare professional.

Serious but rare risks include anaphylactic reactions, severe skin reactions such as Stevens‑Johnson syndrome, and cardiac arrhythmias in susceptible individuals. Patients should seek immediate medical attention if they experience symptoms like difficulty breathing, rash, or irregular heartbeat.

Letizen S should be avoided in individuals with known hypersensitivity to cetirizine or any component of the formulation. Caution is also advised for patients with severe renal impairment, pregnant or nursing women without medical guidance, and those taking interacting medications without physician supervision.