Patient leaflet - RYTHMODAN RETARD 250 MG MODIFIED RELEASE TABLETS
(disopyramide phospate)
Patient Information Leaflet
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
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Keep this leaflet. You may need to read it again.
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If you have any further questions, ask your doctor or pharmacist.
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* This medicine has been prescribed for you only. Do not pass it on to others.
It may harm them, even if their signs of illness are the same as yours.
* if you get any side effects talk to your doctor or pharmacist. this includes any possible side effects not listed in this leaflet. see section 4.
Your medicine is called Rythmodan Retard 250mg Modified Release Tablets but will be referred to as Rythmodan Retard throughout this leaflet.
What is in this leaflet
What Rythmodan Retard is and what it is used for
What you need to know before you take Rythmodan Retard
How to take Rythmodan Retard
Possible side effects
How to store Rythmodan Retard
Contents of the pack and other information
What Rythmodan Retard is and what it is used for
Rythmodan Retard contains a medicine called disopyramide. This belongs to a group of medicines called antiarrhythmic agents.
It works by controlling the uneven beating of your heart and returns it to the normal rhythm.
It is used for controlling your heartbeat in the following situations:
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Arrhythmias – where your heartbeats are uneven, or unusually fast or slow
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To keep your heart beating at a normal rhythm
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To stop unusual heartbeats (arrhythmias) happening after a heart attack
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To stop unusual heartbeats (arrhythmias) during an operation
What you need to know before you take Rythmodan Retard
(disopyramide phospate)
Patient Information Leaflet (continued)
How to take Rythmodan Retard
Always take this medicine exactly as your doctor has told you. Check with your doctor or pharmacist if you are not sure.
Taking this medicine
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Take this medicine by mouth
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Swallow the tablets with a drink of water
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Do not break, crush or chew your tablets
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If you feel the effect of your medicine is too weak or too strong, do not change the dose yourself, but ask your doctor.
Adults
The usual starting dose is one to one and a half tablets (250mg to 375mg) twice a day.
Elderly
Your doctor may lower your dose if you have any kidney or liver problems.
Children
Rythmodan Retard is not suitable for use in children.
Blood tests
Your doctor may ask you to have regular blood tests to check your blood sugar levels.
If you take more Rythmodan Retard than you should
If you take more tablets than you should, talk to a doctor or go to a hospital casualty department straight away. Take the medicine pack with you. This is so the doctor knows what you have taken. The following effects may happen: dizziness, feeling tired, uneven heartbeat (palpitations), dry mouth, difficulty in passing water (urinating), feeling or being sick, stomach pain or fits (seizures).
If you forget to take Rythmodan Retard
Do not take a double dose to make up for a forgotten tablet.
If you stop taking Rythmodan Retard
Keep taking Rythmodan Retard until your doctor tells you to stop.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
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Possible side effects
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Tell your doctor straight away if you notice any of the following serious side effects – you may need urgent medical treatment
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If you have an allergic reaction. The signs may include: a skin rash, swallowing or breathing problems, swelling of your lips, face, throat or tongue.
Tell your doctor as soon as possible if you have any of the following side effects:
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Feeling faint, dizzy or light-headed
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Palpitations or an uneven, fast or slow heartbeat that you have not had before or that gets worse.
Tell your doctor or pharmacist if any of the following side effects gets serious or lasts longer than a few days. Also tell them if you notice any side effects not listed in this leaflet:
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Feeling sick (nausea) or being sick (vomiting), dry mouth, indigestion, diarrhoea, constipation, stomach pain, loss of appetite
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Difficulty in passing urine, especially in men with prostate problems
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Difficulty in getting or maintaining an erection, or in ejaculating (impotence)
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Mood changes or mental problems
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Blurred or double vision
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Yellowing of your skin or eyes (jaundice)
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Worsening of myasthenia gravis (a disease which causes muscle weakness)
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You get more infections than usual. This could be caused by a lowering in the number of white blood cells (called neutropenia)
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Low blood sugar levels (hypoglycaemia). Signs include sweating, paleness, headache, feeling faint or drowsy
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Problems with memory or attention span, difficulty thinking clearly
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In certain situations the bowel may become blocked, especially in the elderly, when Rythmodan Retard is taken with other medicines that may cause constipation or when blood levels of disopyramide are raised due to kidney or liver problems.
Reporting of side effects
If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at:
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.
ft How to store Rythmodan Retard
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KEEP OUT OF THE SIGHT AND REACH OF CHILDREN.
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Do not store above 25°C.
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Do not take Rythmodan Retard after the expiry date shown on the carton and blister label. If your doctor tells you to stop taking this medicine, take any remaining medicine back to the pharmacist for safe disposal. Only keep this medicine if your doctor tells you to.
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Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines that are no longer required. These measures will help to protect the environment.
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* If your medicine becomes discoloured or show any other signs of deterioration, ask your pharmacist who will advise you what to do.
^■Contents of the pack and other information
What Rythmodan Retard contains:
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Each tablet contains 250mg of disopyramide (as phosphate).
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The other ingredients are glyceryl monostearate, sucrose, povidone E1201 and magnesium stearate E470b.
The film coating contains hypromellose E464, propylene glycol E1520 and glucose.
What Rythmodan Retard looks like and contents of the pack
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Rythmodan Retard is an off-white, Biconvex tablet with a break-line and marked 013 and E on one side and the company logo on the reverse side.
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Each pack contains 60 Modified Release Tablets