Monosan (Isosorbide Mononitrate)

After oral intake, isosorbide mononitrate is converted to nitric oxide in the body. Nitric oxide activates guanylate cyclase, raising cyclic GMP levels in vascular smooth muscle. This cascade relaxes arteries and veins, lowering preload and afterload, which reduces myocardial oxygen demand and relieves angina.

The appropriate dose of Monosan is determined by the prescribing healthcare professional based on the patient’s clinical condition, response, and tolerance. Dosage may be adjusted over time, and patients should follow the prescriber’s instructions without altering the regimen on their own.

Safety data for isosorbide mononitrate in pregnancy and lactation are limited. It should only be used if the potential benefit justifies the potential risk to the fetus or infant. Women who are pregnant, planning pregnancy, or breastfeeding should discuss risks and alternatives with their healthcare provider.

To place an order, submit an enquiry on the Monosan 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.

Monosan belongs to the organic nitrate class, offering a longer‑acting nitrate effect compared with short‑acting nitroglycerin. Unlike beta‑blockers or calcium‑channel blockers, it primarily reduces preload and afterload through vasodilation. Its once‑daily dosing can improve adherence, but tolerance may develop with continuous use, requiring drug‑free intervals.

Monosan should be stored at room temperature, below 25 °C. Keep the tablets in their original packaging, protect them from moisture and direct sunlight, and store them out of reach of children. Do not refrigerate or freeze the product.

Monosan is taken orally, usually as a whole tablet with a glass of water. It can be taken with or without food, but patients should follow the prescriber’s guidance on timing relative to meals and other medications to minimize dizziness or hypotension.

The most serious risks include severe hypotension, syncope, and rare allergic reactions such as rash or angioedema. Patients should seek immediate medical attention if they experience fainting, chest pain that does not improve, or signs of an allergic response.

Monosan should be avoided in patients with known hypersensitivity to isosorbide mononitrate or other organic nitrates, those taking concurrent nitrate therapy, and individuals with severe anemia, increased intracranial pressure, or recent use of phosphodiesterase‑5 inhibitors. A healthcare professional must evaluate suitability before prescribing.