Isosorbide Mononitrate
Isosorbide Mononitrate (often known by brands like Monoket, Elantan, and Ismo) is a medication primarily used to prevent chest pain associated with Angina Pectoris. By relaxing blood vessels, this compound manages symptoms of Heart & Blood Pressure conditions.
Key points
- Intended for regular, preventive use against angina rather than for relief once an attack has begun.
- Releases nitric oxide into vessel walls to widen them, so more oxygen-carrying blood reaches the heart muscle.
- Alcohol can intensify its blood-pressure-lowering effect and raise the risk of fainting, so combining the two needs caution.
What is Isosorbide Mononitrate?
Isosorbide Mononitrate belongs to the nitrate class of medications. It acts as a vasodilator, meaning it helps to widen and relax your blood vessels. This effect allows blood to flow more easily through the body and reduces the workload on your heart. Doctors often focus on this medication as a maintenance treatment to prevent regular episodes of chest pain, rather than treating acute attacks once they have already started.
How does Isosorbide Mononitrate work?
This medication works by releasing nitric oxide within the smooth muscle of your blood vessels. This chemical signal causes the vessels to widen, which increases the supply of oxygen-rich blood reaching the heart muscle. By improving blood flow and reducing the intensity of heart contractions, it prevents the pain and discomfort that occurs when the heart does not receive enough oxygen.
Isosorbide Mononitrate brands and forms
While the active ingredient remains the same, manufacturers create different branded versions such as Monoket, Elantan, and Ismo. These brands may vary in manufacturing standards or tablet coatings but provide the same active compound. The primary form for this medication is the tablet. You should select the formulation that aligns with your specific treatment plan, ensuring you follow the instructions provided with your chosen product.
Safety overview for Isosorbide Mononitrate
What to check before using this medicine
Ensure you have a diagnosis from a medical professional before starting nitrates. You should disclose all existing cardiovascular conditions, including recent heart attacks or low blood pressure. If you are taking medication for erectile dysfunction, you must verify compatibility, as combining these treatments can cause dangerous drops in blood pressure.
Possible reactions and tolerability
Common reactions often involve the cardiovascular system. You may experience headaches as your body adjusts to the vasodilation effects, as well as dizziness or lightheadedness, particularly when standing up quickly. Flushing or warmth of the skin is also commonly reported.
Interactions and health factors
Alcohol may intensify the blood-pressure-lowering effects of this medication, increasing the risk of fainting. Other blood pressure medications or stimulants can interact with the mechanism of Isosorbide Mononitrate. Product labelling and verified clinical sources remain the correct references for specific contraindications, interactions and reactions.
Further reading
How does isosorbide mononitrate work?
Isosorbide mononitrate acts as a vasodilator by releasing nitric oxide, which relaxes the smooth muscle in blood vessel walls so they widen. This allows more oxygen-rich blood to reach the heart muscle and reduces the workload on the heart.
How long does isosorbide mononitrate take to work?
Isosorbide mononitrate starts to work within 30 to 60 minutes, and the effect usually lasts about 8 to 12 hours.
What are the side effects of isosorbide mononitrate?
Common reactions include headache, dizziness, flushing and lightheadedness, particularly when standing up quickly. More serious effects such as fainting or severe low blood pressure need immediate medical attention, so speak to a doctor or pharmacist if you are concerned.
Can isosorbide mononitrate be taken with alcohol?
Alcohol can intensify its blood-pressure-lowering effect and raise the risk of fainting, so combining the two needs caution. Ask a doctor or pharmacist for advice about your own situation.
Who should not take isosorbide mononitrate?
Isosorbide mononitrate should not be used by anyone with a hypersensitivity to nitrates, low blood pressure, or who is taking PDE5 inhibitors for erectile dysfunction, as this combination can cause dangerous drops in blood pressure. Other blood pressure medicines can also interact with it, so check with a doctor or pharmacist first.
In which products can I find isosorbide mononitrate?
Products containing isosorbide mononitrate include Imdur and Monoket. Compare forms, strengths and packs in the listings above.
What are other names for isosorbide mononitrate?
Besides the products listed here, isosorbide mononitrate is sold under brand names such as Monit, Elantan and Ismo. Names differ from country to country, so the active ingredient is the surest way to compare.
Do I need a prescription for isosorbide mononitrate in Thailand?
No. In Thailand isosorbide mononitrate is sold by pharmacists without a prescription, and Yasabai does not ask for one either. We are an online store, not a dispensing pharmacy; we arrange your order and delivery on your behalf.
Ordering without a prescription →Do you deliver isosorbide mononitrate to Thailand?
Yes. Our pharmacy partners ship from India to Thailand and across Asia in discreet packaging. Standard Airmail takes up to 3 weeks; Express Tracked Courier takes up to 1 week.
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