Letizen (Cetirizine Dihydrochloride)

Cetirizine works by selectively blocking peripheral H1 histamine receptors. By preventing histamine from binding to these receptors, it stops the cascade that causes vasodilation, increased vascular permeability and nerve stimulation, which are responsible for typical allergy symptoms.

The exact dose of Letizen is determined by the prescribing clinician based on the patient’s age, weight and clinical condition. In most adult cases, a single 10 mg tablet taken once daily is common, but the prescriber may adjust the regimen as needed.

Safety data for cetirizine in pregnancy are limited, so Letizen should only be used if the potential benefit outweighs any risk and after consulting a healthcare professional. During breastfeeding, cetirizine can be excreted in milk; caution and medical advice are recommended.

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

Letizen (cetirizine) is a second‑generation antihistamine that offers effective allergy relief with a lower incidence of sedation compared with first‑generation agents such as diphenhydramine. Its once‑daily dosing and favorable safety profile make it a common choice for chronic allergic conditions.

Letizen tablets should be stored at ambient temperature, below 25 °C, in the original packaging to protect them from moisture and light. Keep the product out of reach of children and do not use it after the expiry date printed on the label.

Letizen is taken orally with or without food. The tablet should be swallowed whole with a glass of water. Patients should follow the dosing instructions provided by their healthcare professional and avoid crushing or chewing the tablet unless directed otherwise.

While rare, serious adverse reactions can include anaphylaxis, Stevens‑Johnson syndrome and angioedema. Any signs of severe allergic response—such as difficulty breathing, swelling of the face or throat, or widespread rash—require immediate medical attention.

Letizen should be avoided in individuals with known hypersensitivity to cetirizine or any other component of the formulation. Caution is also advised for patients with severe renal impairment, pregnant or breastfeeding women unless directed by a physician, and those taking interacting CNS depressants.