Nicomni-5 Precautions and Drug Interactions
Nicomni-5: Nicorandil Tablets IP 5 mg
Nicorandil interacts with several common medicines and needs care in low blood pressure, pregnancy and kidney disease. Here is what to tell your doctor before starting Nicomni-5 and during treatment.
Who needs extra caution with Nicomni-5?
Nicorandil relaxes blood vessels, so anything that already lowers blood pressure or blood volume increases the chance of dizziness and fainting. Tell your doctor if any of the following apply.
- Low blood pressure or frequent light headedness on standing
- Dehydration, whether from a stomach upset, fever, heavy sweating in summer or long fasting
- Heart failure, particularly if you have been told your heart fills poorly, or if you have had fluid in the lungs
- Kidney disease, which can affect how other medicines behave alongside it
- Liver disease or a history of abnormal liver tests
- Older age, where sensitivity to blood pressure changes is often greater
- A history of stomach or bowel ulcers, diverticular disease or bowel surgery
- Glaucoma or eye disease, which your doctor may want to note
None of these automatically rules out treatment. They simply change how carefully a doctor starts and monitors it.
Situations where nicorandil is generally not used
There are conditions in which nicorandil is usually avoided altogether. These include cardiogenic shock, severe low blood pressure, low blood volume, and acute fluid overload in the lungs. Heart failure where the filling pressure inside the heart is already low is another situation where doctors are cautious, because further vessel relaxation can reduce output rather than help.
A known allergy to nicorandil or to any of the excipients in the tablet is also a reason not to use it.
This is exactly why Nicomni-5 sits under Schedule H. A chemist cannot judge these situations across a counter, and a prescription written for one person is not transferable to a family member with similar symptoms. Sharing heart medicines within a household is a genuine risk, not a technicality.
Important drug interactions with Nicomni-5
Some combinations matter a great deal.
- Medicines for erectile dysfunction such as sildenafil, tadalafil and vardenafil must not be taken with nicorandil. Both widen blood vessels through related pathways, and together they can cause a severe fall in blood pressure. This is a firm rule, not a caution, and it includes products bought informally or online
- Riociguat, used in pulmonary hypertension, is avoided for the same reason
- Other nitrates, including long acting nitrate tablets and sprays, add to the vessel widening effect. Where a doctor prescribes both deliberately, they will explain the timing
- Blood pressure medicines, including tricyclic antidepressants and some antipsychotics that lower pressure, can increase dizziness
- NSAID painkillers, including regular aspirin at pain relieving doses, and steroid tablets may increase the risk of ulceration and gut complications when taken with nicorandil
- Dapagliflozin type medicines and diuretics can add to fluid loss and low pressure in some people
Always confirm any new medicine with the doctor treating your heart, including one prescribed by a different specialist.
Alcohol, food and daily habits
Alcohol widens blood vessels on its own. Taken along with nicorandil, it can increase flushing, headache, dizziness and the risk of a fall. Ask your doctor directly about alcohol rather than assuming a small amount is fine, since the answer depends on your heart condition and the rest of your prescription.
Food does not usually need to be restricted for this molecule specifically. Your doctor may still advise a diet that supports heart health, including less salt, less deep fried food and more fruit and vegetables, because those measures serve the underlying coronary disease.
During long religious fasts, festivals or a heat wave, dehydration is the practical concern. Discuss fasting plans with your doctor in advance so that the timing of tablets and fluid intake can be planned together.
Hot baths, saunas and standing for long periods can worsen the light headed feeling. Rise slowly from bed and sit for a moment before standing.
Pregnancy, breastfeeding and special groups
Nicorandil is generally not recommended during pregnancy unless a doctor judges that the expected benefit outweighs the possible risk, because experience in pregnancy is limited. If you are pregnant, think you may be pregnant or are planning a pregnancy, tell your doctor before continuing.
For breastfeeding, information is limited, so nicorandil is usually avoided while nursing unless a specialist advises otherwise.
In older adults, doctors often begin at a modest strength and review blood pressure carefully. In kidney or liver impairment, the whole medicine list is usually reviewed together.
Nicorandil is not established for use in children, and the pack instruction to keep the medicine out of reach of children should be followed strictly.
Tests your doctor may order while on Nicomni-5
There is no single fixed test schedule for everyone. Depending on your history, a doctor may check blood pressure and pulse at each visit, including readings taken sitting and standing, and may order an ECG, blood tests covering kidney and liver function, a complete blood count, or cardiac imaging.
They may also ask practical questions that work as a test of their own: how far you can walk before symptoms start, how many times a week you needed a rescue medicine, and whether any ulcers or stomach symptoms have appeared.
Keep your reports in one folder and carry it to appointments. If you see a dentist, a surgeon or any new doctor, mention that you take nicorandil, because mouth ulcers and gut symptoms are easy to misread when the medicine list is unknown.
This article is for general information only and is not a substitute for advice from a registered medical practitioner.
Frequently asked questions
- Can I take sildenafil while on Nicomni-5?
- No. Medicines for erectile dysfunction must not be combined with nicorandil because the combination can cause a severe fall in blood pressure. Speak to your doctor about alternatives.
- Is it alright to take painkillers with Nicomni-5?
- Ask first. Regular NSAID painkillers and steroid tablets may add to the risk of gut ulceration when taken with nicorandil, so your doctor should choose the option.
- Can I drink alcohol while taking Nicomni-5?
- Alcohol adds to the vessel widening effect and can increase dizziness and flushing. Discuss your own situation with your doctor rather than assuming a limit.
- Is Nicomni-5 given during pregnancy?
- It is generally not recommended in pregnancy because experience is limited. Tell your doctor at once if you are pregnant or planning a pregnancy.
- Do I need regular blood tests?
- Your doctor decides based on your history and other medicines. Blood pressure checks and questions about symptoms are almost always part of follow up.
- Should I tell my dentist that I take nicorandil?
- Yes. Mouth ulcers linked to nicorandil are easily mistaken for ordinary ulcers, so your dentist should know the full medicine list.
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Medical Disclaimer
This product information is intended for general awareness only and should not be considered medical advice. Please consult a registered medical practitioner before using any prescription medicine.


