Patient Leaflet Updated 16-Dec-2025 | Dexcel Pharma Ltd
Nicorandil 10mg and 20mg Tablets
Nicorandil 10mg Tablets
Nicorandil 20mg Tablets
Nicorandil
1. What Nicorandil Tablets are and what they are used for
2. What you need to know before you take Nicorandil Tablets
3. How to take Nicorandil Tablets
4. Possible side effects
5. How to store Nicorandil Tablets
6. Contents of the pack and other information
The name of your medicine is Nicorandil 10mg Tablets or Nicorandil 20mg Tablets (referred to as Nicorandil Tablets throughout this leaflet). Nicorandil Tablets contain the active substance “nicorandil”. This belongs to a group of medicines called 'potassium-channel activators'.
Nicorandil Tablets are used to prevent or reduce painful signs (“angina pectoris”) of your heart disease. It is used in adults who cannot take heart medicines called “beta-blockers” or “calcium antagonists”.
Nicorandil Tablets work by increasing the blood flow through the blood vessels of the heart. They improve the blood and oxygen supply of your heart muscle and reduces its workload.
Do not take Nicorandil Tablets if any of the above apply to you. If you are not sure, talk to your doctor or pharmacist before taking Nicorandil Tablets.
Talk to your doctor straight away if you notice any of the following serious side effects during treatment:
Talk to your doctor before taking medicines for inflammation (corticosteroids) or non-steroidal anti-inflammatory medicines including aspirin, with Nicorandil Tablets. If taken together, you may be more likely to get ulcers or the other problems mentioned above.
These side effects can happen at the beginning of treatment or later in treatment. Talk to your doctor straight away if you notice any of the signs above. See section 4 for a full list of side effects.
Talk to your doctor or pharmacist before taking Nicorandil Tablets if:
If any of the above apply (or you are not sure), talk to your doctor or pharmacist before taking Nicorandil Tablets.
Nicorandil Tablets are not recommended for use in children.
Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines. This includes medicines obtained without a prescription, including herbal medicines. This is because Nicorandil Tablets can affect the way some other medicines work. Also some medicines may affect the way Nicorandil Tablets work.
Do not take this medicine, and talk to your doctor if you are taking any of the following:
Do not take this medicine and talk to your doctor or pharmacist if any of the above apply to you.
Tell your doctor before taking Nicorandil Tablets, if you are taking any of the following:
Nicorandil may lower your blood pressure. If you drink alcohol while you are being treated with Nicorandil Tablets your blood pressure may become even lower.
If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.
You should avoid taking this medicine if you are pregnant.
It is not known whether nicorandil passes into your breast-milk. You should not breast-feed while you are taking this medicine.
Nicorandil Tablets may make you feel dizzy or weak. If this happens, do not drive or use any tools or machines.
Nicorandil Tablets contain less than 1 mmol sodium (23 mg) per tablet, that is to say essentially 'sodium-free'.
Always take this medicine exactly as your doctor has told you. Check with your doctor or pharmacist if you are not sure.
The recommended dose is:
If you take more Nicorandil Tablets than you should or a child swallows any of the tablets, talk to a doctor or go to hospital straight away. Take the medicine pack with you. This is so the doctor knows what you have taken. You may feel dizzy or weak – signs of low blood pressure. You may also feel your heart beating irregularly and faster.
If you forget a dose, take it as soon as you remember. However, if it is nearly time for your next dose, skip the missed dose. Do not take a double dose to make up for a forgotten dose.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Talk to your doctor straight away if you notice any of the following serious side effects:
These side effects can happen at the beginning of treatment or later in treatment.
Talk to your doctor straight away if you notice any of the serious side effects above.
Tell your doctor or pharmacist if you notice any of the following side effects:
Very common (may affect more than 1 in 10 people)
Common (may affect up to 1 in 10 people)
Uncommon (may affect up to 1 in 100 people)
Rare (may affect up to 1 in 1,000 people)
Very rare (may affect up to 1 in 10,000 people)
Not known (frequency cannot be estimated from the available data)
If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.
By reporting side effects you can help provide more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is stated on the blister or carton after EXP. The expiry date refers to the last day of that month.
Store below 25°C. Store in the original package to protect from moisture.
Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help to protect the environment.
The tablets are white to off-white, round, scored on one side and engraved with "10" or "20" on the other side.
The tablets can be divided into equal doses.
Nicorandil Tablets are available in packs of 10, 28, 30, 56 and 60 tablets in blister strips. Not all pack sizes may be marketed.
This leaflet was last revised in November 2025
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+44 (0) 1748 828 784
+44 (0)1327 312 266
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