Lidina (Ketotifen Hydrogen Fumarate)

Ketotifen hydrogen fumarate works by blocking H1 histamine receptors on the eye surface, preventing histamine‑induced itching and vasodilation. At the same time it stabilises mast cells, reducing the release of inflammatory mediators that contribute to ocular allergy symptoms.

The dosing regimen for Lidina is determined by the prescribing clinician based on the severity of the allergic eye condition and patient response. Typically, one or two drops are instilled in the affected eye(s) as directed, but the exact schedule should follow the healthcare professional’s instructions.

Safety data for ketotifen hydrogen fumarate in pregnancy and lactation are limited. The product should be used only if the potential benefit justifies any possible risk to the fetus or infant, and this decision should be made in consultation with a qualified healthcare provider.

To order Lidina, 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 necessary import documentation.

Lidina combines antihistamine activity with mast‑cell stabilisation, offering both immediate symptom relief and longer‑term control of inflammation. Some other eye drops provide only antihistamine effects, while corticosteroid drops give strong anti‑inflammatory action but carry higher risk of side effects. Lidina therefore occupies a middle ground with a favourable safety profile for routine allergic eye disease.

Lidina should be stored below 25 °C in its original packaging, protected from light and moisture. Keep the bottle tightly closed when not in use, and avoid freezing. If the product appears discoloured or the container is damaged, discard it and obtain a new supply.

Lidina is applied topically to the eye. After washing hands, tilt the head back, pull down the lower eyelid to create a small pocket, and instil the prescribed number of drops into the conjunctival sac. Close the eye gently for a few seconds and avoid blinking excessively. Do not touch the dropper tip to any surface.

Although uncommon, serious adverse events can include severe allergic reactions such as anaphylaxis, corneal ulcer or keratitis, and sudden loss of vision. If any of these occur, discontinue the product immediately and seek urgent medical attention.

Lidina should be avoided in individuals with known hypersensitivity to ketotifen or any excipients in the formulation. Patients with active ocular infections or severe ocular surface disease should consult an eye‑care professional before use, as the medication may mask symptoms or exacerbate the condition.