Active ingredient
- morphine sulfate
Legal Category
POM: Prescription only medicine
POM: Prescription only medicine
The Patient Information Leaflet (PIL) is the leaflet included in the pack with a medicine. It is written for patients and gives information about taking or using a medicine. It is possible that the leaflet in your medicine pack may differ from this version because it may have been updated since your medicine was packaged.
Below is a text only representation of the Patient Information Leaflet. The original leaflet can be viewed using the link above.
The text only version may be available in large print, Braille or audio CD. For further information call emc accessibility on 0800 198 5000. The product code(s) for this leaflet are: PL 16950/0039, PL 16950/0040, PL 16950/0037, PL 16950/0036, PL 16950/0038, PL 16950/0041, PL 16950/0035.
MST Continus tablets 5 mg, 10 mg, 15 mg, 30 mg, 60 mg, 100 mg, 200 mg
Package leaflet: Information for the user
MST® Continus® 5 mg, 10 mg, 15 mg, 30 mg, 60 mg, 100 mg and 200 mg prolonged release tablets
Morphine sulfate
This medicine contains morphine which is an opioid, which can cause addiction. You can get withdrawal symptoms if you stop taking it suddenly.
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
In this leaflet:
1. What MST Continus tablets are and what they are used for
2. What you need to know before you take MST Continus tablets
3. How to take MST Continus tablets
4. Possible side effects
5. How to store MST Continus tablets
6. Contents of the pack and other Information
1. What MST Continus tablets are and what they are used for
This medicine has been prescribed for you for the relief of severe pain over a period of 12 hours. It contains morphine, which belongs to a class of medicines called opioids, which are ‘pain relievers’. The medicine has been prescribed for you and should not be given to anyone else. Opioids can cause addiction and you may get withdrawal symptoms if you stop taking it suddenly. Your doctor should have explained how long you will be taking it for and when it is appropriate to stop, how to do this safely.
2. What you need to know before you take MST Continus tablets
Do not take MST Continus tablets if:
If you are going to have an operation, please tell the doctor at the hospital that you are taking these tablets.
Warnings and precautions
Talk to your doctor or pharmacist before taking these tablets if you:
Taking this medicine regularly, particularly for a long time, can lead to addiction. Your doctor should have explained how long you will be using it for and when it is appropriate to stop, how to do this safely.
Rarely, increasing the dose of this medicine can make you more sensitive to pain. If this happens, you need to speak to your doctor about your treatment.
Addiction can cause withdrawal symptoms when you stop taking this medicine. Withdrawal symptoms can include restlessness, difficulty sleeping, irritability, agitation, anxiety, feeling your heartbeat (palpitations), increased blood pressure, feeling or being sick, diarrhoea, loss of appetite, shaking, shivering or sweating. Your doctor will discuss with you how to gradually reduce your dose before stopping the medicine. It is important that you do not stop taking the medicine suddenly as you will be more likely to experience withdrawal symptoms.
Opioids should only be used by those they are prescribed for. Do not give your medicine to anyone else. Taking higher doses or more frequent doses of opioid may increase the risk of addiction. Overuse and misuse can lead to overdose and/or death.
This medicine may cause breathing problems or worsen already existing problems while sleeping. These problems may include pauses in breathing during sleep, being awoken by shortness of breath, difficulty staying asleep or excessive daytime drowsiness. If you or someone else observes these symptoms contact your doctor. Your doctor may want to lower your dose.
You may experience hormonal changes while taking these tablets. Your doctor may want to monitor these changes.
Other medicines and MST Continus tablets
Concomitant use of MST Continus tablets and sedative medicines, such as benzodiazepines or related drugs, increases the risk of drowsiness, difficulties in breathing (respiratory depression), coma and may be life-threatening. Because of this, concomitant use should only be considered when other treatment options are not possible.
However if your doctor does prescribe MST Continus tablets together with sedative medicines, the dosage and duration of concomitant treatment should be limited by your doctor.
Please tell your doctor about all sedative medicines you are taking and follow your doctor’s dosage recommendation closely.
It could be helpful to inform friends or relatives to be aware of the signs and symptoms stated above. Contact your doctor when experiencing such symptoms.
If you are taking or have recently taken any other medicines, or might take any other medicines please tell you doctor or pharmacist. If you take these tablets with some other medicines, the effect of the tablets or the other medicine may be changed.
Tell your doctor or pharmacist if you are taking any of the medicines mentioned below:
Also tell your doctor if you have recently been given an anaesthetic.
Taking MST Continus tablets with alcohol
Drinking alcohol whilst taking MST Continus tablets may make you feel more sleepy or increase the risk of serious side effects such as shallow breathing with a risk of stopping breathing, and loss of consciousness. It is recommended not to drink alcohol while you are taking MST Continus tablets.
Pregnancy and breastfeeding
Pregnancy
Do not take MST Continus tablets if you are pregnant or think you might be pregnant unless you have discussed this with your doctor and the benefits of treatment are considered to outweigh the potential harm to the baby. If you take MST Continus tablets during pregnancy your baby may become dependent and experience withdrawal symptoms after the birth which may need to be treated, such as high-pitched crying, irritability and restlessness, shaking (tremor), feeding difficulties and sweating.
Breast-feeding
Do not take MST Continus tablets while you are breastfeeding as morphine passes into breast milk and will affect your baby.
Driving and using machines
These tablets may cause a number of side effects such as drowsiness which could affect your ability to drive or use machinery (see section 4 for a full list of side effects). These are usually most noticeable when you first start taking the tablets, or when changing to a higher dose. If you are affected, you should not drive or use machinery.
This medicine can affect your ability to drive as it may make you sleepy or dizzy.
Details regarding a new driving offence concerning driving after drugs have been taken in the UK may be found here: https://www.gov.uk/drug-driving-law
Talk to your doctor or pharmacist if you are not sure whether it is safe for you to drive while taking this medicine.
MST Continus tablets contain lactose and sunset yellow (E110)
The 5 mg, 10 mg, 15 mg, 30 mg and 60 mg tablets contain lactose which is a form of sugar. If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking these tablets.
The 30 mg and 60 mg tablets contain sunset yellow (E110) which may cause allergic reactions.
3. How to take MST Continus tablets
Always take the tablets exactly as your doctor has told you. The label on your medicine will tell you how many tablets to take and how often.
Your doctor should have discussed with you how long the course of MST Continus tablets will last. They will arrange a plan for stopping treatment. This will outline how to gradually reduce the dose and stop taking the medicine.
Swallow your tablets whole with a glass of water. Do not break, crush or chew them.
MST Continus tablets are designed to work properly over 12 hours when swallowed whole. If a tablet is broken, crushed or chewed, the entire 12-hour dose may be absorbed rapidly into your body. This can be dangerous, causing serious problems such as an overdose, which may be fatal.
You must only take the tablets by mouth. The tablets should never be crushed or injected as this may lead to serious side effects, which may be fatal.
You should take your tablets every 12 hours. For instance, if you take a tablet at 8 o’clock in the morning, you should take your next tablet at 8 o’clock in the evening.
Adults
The usual starting dose is one 30 mg tablet every 12 hours. However, the dose will depend on your age, weight and the severity of your pain. If you are elderly or weigh less than 70 kg your doctor may suggest a lower starting dose. Your doctor will decide how many tablets you should take.
Children over one year of age
Children over one year of age can take the tablets. The required dose will depend on their weight and severity of pain. This should be discussed with your doctor or pharmacist.
If you find that you are still in pain whilst taking these tablets discuss this with your doctor.
Do not exceed the dose recommended by your doctor. You should check with your doctor or pharmacist if you are not sure.
If you take more MST Continus tablets than you should or if someone accidentally swallows your tablets
Call your doctor or hospital straight away as you may need emergency treatment. People who have taken an overdose may feel very sleepy, sick, dizzy or get pneumonia from inhaling vomit or foreign matter (symptoms may include breathlessness, cough and fever). People who have taken an overdose may also have breathing difficulties leading to unconsciousness or even death. When seeking medical attention make sure that you take this leaflet and any remaining tablets with you to show to the doctor.
If you forget to take MST Continus tablets
If you remember within 4 hours of the time your tablet was due, take your tablet straight away. Take your next tablet at your normal time. If you are more than 4 hours late, please call your doctor for advice. Do not take a double dose to make up for a forgotten tablet.
If you stop taking MST Continus tablets
Do not suddenly stop taking this medicine. If you want to stop taking this medicine discuss this with your doctor first. They will tell you how to do this, usually by reducing the dose gradually so that any unpleasant withdrawal effects are kept to a minimum. Withdrawal symptoms such as restlessness, difficulty sleeping, irritability, agitation, anxiety, feeling your heartbeat (palpitations), increased blood pressure, feeling or being sick, diarrhoea, shaking, shivering or sweating may occur if you suddenly stop taking this medicine.
If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
4. Possible side effects
Like all medicines, these tablets can cause side effects, although not everybody gets them.
All medicines can cause allergic reactions, although serious allergic reactions are uncommon. Tell your doctor immediately if you get any sudden wheeziness, difficulties in breathing, swelling of the eyelids, face or lips, rash or itching especially those covering your whole body.
The most serious side effect, although uncommon, is a condition where you breathe more slowly or weakly than expected (respiratory depression). Tell your doctor immediately if this happens to you.
Drug withdrawal
When you stop taking MST Continus tablets you may experience drug withdrawal symptoms, which include restlessness, difficulty sleeping, irritability, agitation, anxiety, feeling your heartbeat (palpitations), increased blood pressure, feeling or being sick, diarrhoea, shaking, shivering or sweating.
How do I know if I am addicted?
If you notice any of the following signs whilst taking MST Continus tablets it could be a sign that you have become addicted.
If you notice any of these signs it is important you talk to your doctor.
The following side effects may also occur:
Very common side effects (may affect more than 1 in 10 people)
Common side effects (may affect up to 1 in 10 people)
Uncommon side effects (may affect up to 1 in 100 people)
Frequency not known (frequency cannot be estimated from the available data)
Reporting of side effects
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.
5. How to store MST Continus tablets
Keep this medicine out of the sight and reach of children.
Do not use any tablets after the expiry date which is stated on the blister and carton. EXP 08 2020 means that you should not take the tablets after the last day of that month i.e. August 2020.
Do not store your tablets above 25°C.
Do not take your tablets if they are broken or crushed as this can be dangerous and can cause serious problems such as overdose.
Do not throw away 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.
6. Contents of the pack and other information
What MST Continus tablets contain
The active ingredient is morphine sulfate. Each tablet contains 5 mg, 10 mg, 15 mg, 30 mg, 60 mg, 100 mg or 200 mg of morphine sulfate.
The other ingredients are:
The tablets also contain the following colourants:
10 mg – Iron oxide (E172)
15 mg – Iron oxide (E172), brilliant blue (E133), quinoline yellow (E104) and indigo carmine (E132)
30 mg – Erythrosine (E127), indigo carmine (E132) and sunset yellow (E110)
60 mg – Erythrosine (E127), quinoline yellow (E104) and sunset yellow (E110)
100 mg – Iron oxide (E172) and indigo carmine (E132)
200 mg – Brilliant blue (E133) and quinoline yellow (E104)
What MST Continus tablets look like and the contents of the pack
The tablets are marked with NAPP on one side and the strength (e.g. 5 mg, 10 mg etc) on the other. The tablets are coloured as follows: 5 mg – white, 10 mg – golden brown, 15 mg – green, 30 mg – dark purple, 60 mg – orange, 100 mg – grey, 200 mg – teal green.
In each box there are 60 tablets.
Marketing Authorisation Holder and Manufacturer
The tablets are made by Bard Pharmaceuticals Limited for the marketing authorisation holder both at
This leaflet is also available in large print, Braille or as an audio CD. To request a copy, please call the RNIB Medicine Information line (free of charge) on: 0800 198 5000
You will need to give details of the product name and reference number. These are as follows:
Product name: MST Continus tablets
Reference number: 16950/0035
This leaflet was last revised in October 2020.
® MST, Continus,MST Continus and the NAPP logo are registered trade marks.
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