Isoket (Isosorbide Dinitrate)

Isosorbide dinitrate releases nitric oxide in the bloodstream. Nitric oxide activates guanylate cyclase, increasing cyclic GMP levels, which relax vascular smooth muscle. This causes venous and arterial dilation, decreasing preload and afterload, and ultimately reduces myocardial oxygen consumption.

The specific dose of Isoket is individualized by the prescribing clinician based on the patient’s condition, response, and tolerance. Dosage may be adjusted over time, and patients should follow the exact regimen provided by their healthcare professional.

Safety data for isosorbide dinitrate in pregnancy and lactation are limited. The drug should only be used if the potential benefit justifies any possible risk to the fetus or infant, and the decision must be made by a qualified healthcare provider.

To request Isoket, 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.

Both Isoket (isosorbide dinitrate) and nitroglycerin belong to the organic nitrate class and produce nitric oxide‑mediated vasodilation. Isosorbide dinitrate has a longer half‑life, allowing less frequent dosing, while nitroglycerin often requires more frequent administration for acute relief.

Isoket should be stored at room temperature, below 25 °C, in its original packaging to protect it from moisture and light. Keep the product out of reach of children and avoid exposing it to excessive heat or humidity.

Isoket is supplied as a sublingual tablet. The tablet should be placed under the tongue and allowed to dissolve completely without swallowing. Patients should remain seated or lying down for a few minutes after administration to reduce the risk of dizziness.

The most serious risks include severe hypotension, which can lead to syncope or fainting, and rare allergic reactions such as anaphylaxis. Patients should seek immediate medical attention if they experience sudden weakness, loss of consciousness, or signs of a severe allergic response.

Isoket is contraindicated in patients with known severe hypotension, recent myocardial infarction, or those taking phosphodiesterase‑5 inhibitors (e.g., sildenafil). It should also be avoided in individuals with known hypersensitivity to isosorbide dinitrate or any other organic nitrates.