Isoket Spray (Isosorbide Dinitrate)

The drug is converted in the body to nitric oxide, which activates guanylate cyclase in vascular smooth muscle. This raises cyclic GMP levels, causing relaxation of veins and arteries, lowering preload and afterload, and decreasing myocardial oxygen demand.

The prescribed dose of Isoket Spray is determined by the treating physician based on the individual’s clinical condition, severity of angina, and response to therapy. Patients should follow the exact dosing instructions provided by their healthcare professional.

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

To place an order, submit an enquiry on the Isoket Spray 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.

Isoket Spray delivers nitrate therapy via a sublingual spray, offering faster onset than oral tablets. Compared with other nitrates such as nitroglycerin, it provides a similar vasodilatory effect but may have a longer duration of action, making it useful for both acute relief and prophylaxis.

Store Isoket Spray at room temperature, below 25 °C. Keep the container tightly closed, protect it from moisture and direct sunlight, and retain it in the original packaging until use.

The spray is administered sublingually. The patient places the prescribed number of sprays under the tongue, holds it briefly without swallowing, and allows the medication to absorb through the oral mucosa for rapid systemic effect.

Serious risks include severe hypotension, syncope, and rare cases of methemoglobinemia. Patients should be monitored for sudden drops in blood pressure, dizziness, or signs of oxygen deprivation, and seek immediate medical attention if these occur.

Isoket Spray is contraindicated in patients with known hypersensitivity to isosorbide dinitrate or other organic nitrates, severe anemia, recent use of phosphodiesterase‑5 inhibitors, or uncontrolled hypotension. Clinicians must evaluate each patient’s medical history before prescribing.