Letizen (Cetirizine Dihydrochloride)

Cetirizine selectively blocks peripheral H1 histamine receptors. By preventing histamine from binding to these receptors, it stops the cascade that leads to vasodilation, increased vascular permeability and nerve stimulation, thereby reducing the typical signs of allergy such as itching, swelling and redness.

The appropriate dose of Letizen is determined by the prescribing healthcare professional based on the patient’s age, weight, renal function and the severity of the allergic condition. Patients should follow the prescriber’s instructions and not adjust the dose on their own.

Safety data for cetirizine in pregnancy and lactation are limited. It should only be used if the potential benefit justifies the potential risk to the fetus or infant, and the decision must be made by a qualified healthcare provider after a careful risk‑benefit assessment.

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 (including any cold‑chain requirements) and assistance with import documentation.

Letizen (cetirizine) is a second‑generation antihistamine, offering effective allergy relief with a lower incidence of sedation compared with first‑generation agents such as diphenhydramine. Compared with other second‑generation drugs like loratadine, cetirizine may have a slightly faster onset of action, while still maintaining a favorable safety profile.

Letizen tablets should be stored at ambient temperature, preferably below 25 °C, in their original packaging to protect from moisture and light. Keep the product out of reach of children and avoid storing in bathrooms or other humid environments.

Letizen is taken orally, usually with a glass of water. It can be taken with or without food, as directed by the prescriber. Swallow the tablet whole; do not crush, chew, or split it unless specifically instructed by a healthcare professional.

Although rare, serious adverse reactions may include anaphylaxis, severe skin reactions such as Stevens‑Johnson syndrome, cardiac arrhythmias, hepatic dysfunction, and blood dyscrasias. Patients should seek immediate medical attention if they experience symptoms like difficulty breathing, widespread rash, yellowing of the skin or eyes, or unexplained bruising or bleeding.

Letizen should be avoided in individuals with known hypersensitivity to cetirizine or any of its excipients. Caution is advised for patients with severe renal impairment, those taking interacting medications listed under major interactions, and pregnant or breastfeeding women unless the benefit outweighs the risk as assessed by a healthcare professional.