Imdur (Isosorbide Mononitrate)

Isosorbide Mononitrate releases nitric oxide after oral absorption. The nitric oxide activates guanylate cyclase, raising cyclic GMP levels in vascular smooth muscle. This cascade causes the blood vessels to relax, lowering blood pressure and decreasing the workload on the heart, which in turn lessens myocardial oxygen consumption.

The specific dose of Imdur is determined by the prescribing clinician based on the individual’s medical condition, response to therapy, and other medications. Patients should follow the dosage instructions provided by their healthcare professional and not adjust the dose on their own.

Safety data for Imdur in pregnancy and lactation are limited. It should only be used if the potential benefit to the mother outweighs any possible risk to the fetus or infant. Women who are pregnant, planning to become pregnant, or breastfeeding should discuss the risks with their healthcare provider.

To request Imdur, 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.

Imdur belongs to the nitrate class, offering long‑acting vasodilation, whereas short‑acting nitrates like nitroglycerin provide rapid relief of acute attacks. Compared with beta‑blockers or calcium‑channel blockers, Imdur primarily reduces myocardial oxygen demand through vascular relaxation rather than heart‑rate control, making it a useful option in combination therapy.

Imdur tablets should be stored at ambient temperature, preferably below 25 °C. Keep them in the original container, protect from moisture and direct sunlight, and ensure they are out of reach of children. Do not store in a refrigerator or freezer.

Imdur is taken orally, usually with a full glass of water. It can be taken with or without food, but patients should follow the specific timing instructions given by their prescriber to maintain consistent blood levels and minimize side effects.

The most serious risks include severe hypotension, syncope (fainting), and rare allergic reactions such as Stevens‑Johnson syndrome. Patients should seek immediate medical attention if they experience sudden dizziness, fainting, chest pain, or signs of an allergic reaction like rash, swelling, or breathing difficulty.

Imdur is contraindicated in patients with known hypersensitivity to isosorbide mononitrate or other nitrates, those who have recently used phosphodiesterase‑5 inhibitors, and individuals with severe hypotension or recent myocardial infarction. Clinicians should evaluate each patient’s medical history before prescribing.