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Methylcellulose tablets

Klinische Anmerkung des Autors Michael Stewart 02/10/2023: Celevac® tablets were discontinued in the United Kingdom in January 2021. At the time of review there are no methylcellulose products for digestive health available in the UK. Methylcellulose tablets and powders may still be available in other countries or as special order products. This medicine leaflet is based on medical information available in the UK at the time of writing and is left here for reference purposes. Please also refer to the manufacturer's information supplied with your medicine.

The usual dose is 3-6 tablets taken twice a day. Break up the tablets in your mouth before you swallow.

If you are taking methylcellulose for constipation, drink plenty of water as you take the tablets.

If you are taking methylcellulose for diarrhoea, swallow the tablets with as little water as possible.

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About methylcellulose

Art des Medikaments

A bulk-forming laxative

Verwendet für

To manage bowel function (constipation and diarrhoea)

Auch genannt

Celevac® (UK - discontinued)
Citrucel® (USA)

Verfügbar als

Tabletten

Methylcellulose is a laxative used to regulate bowel function - it can help manage constipation or diarrhoea.

Verstopfung is a common problem. It means either going to the toilet less often than usual to empty your bowels, or passing hard or painful stools. Constipation can be caused by a number of things. Not eating enough fibre or not drinking enough fluid can cause constipation. Some conditions (such as pregnancy) can cause constipation, as can a lack of exercise or movement (such as being ill in bed) and some medicines. When taken with a glassful of water, methylcellulose tablets absorb the water and swell to a soft gel consistency in your bowel. This increases the bulk of your stools and eases constipation by encouraging your bowels to move the stools through your digestive system.

Methylcellulose tablets can also be helpful to manage Durchfall. When the tablets are swallowed with only a sip of water, they absorb water from the bowel. This helps prevent the loss of fluid from diarrhoea and changes the consistency of the stools making them more formed. This action helps to regulate the passage of food through the digestive systems in people with certain bowel disorders, such as Reizdarmsyndrom, Divertikelerkrankung, und Colitis ulcerosa, and after some types of bowel surgery.

Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking methylcellulose it is important that your doctor knows:

  • If you are pregnant or breastfeeding. Methylcellulose is not considered harmful to babies, but it is important that your doctor knows about this.

  • If you have any difficulty in swallowing.

  • If you are so constipated that you think you may have a blockage.

  • If you have been told you have a bowel infection.

  • Wenn Sie andere Medikamente einnehmen. Dazu gehören alle Medikamente, die Sie einnehmen und die ohne Rezept erhältlich sind, sowie pflanzliche und ergänzende Medikamente.

  • Wenn Sie jemals eine allergische Reaktion auf ein Medikament hatten.

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  • Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about methylcellulose and will provide you with a full list of the side-effects which you may experience.

  • Take methylcellulose tablets exactly as your doctor tells you to. It is usual to take a dose of 3-6 tablets, twice a day. Your doctor will tell you what dose is right for you. Break up the tablets in your mouth before you swallow them. You should not take a dose just before bedtime.

  • If you are taking methylcellulose for constipation, it is important for you to drink plenty of water at the same time as you take the methylcellulose tablets. Count out the correct number of tablets for your dose and swallow these with a large glassful (about 300 ml) of water.

  • If you are taking methylcellulose for diarrhoea, swallow the correct number of tablets for each dose with just a sip of water. Avoid drinking anything else during the half hour before you take the tablets and during the half hour after you have taken the tablets.

  • If you forget to take a dose, do not worry, just take the next dose when it is due. Do not take two doses together to make up for a forgotten dose.

The following information applies if you are taking methylcellulose tablets for Verstopfung:

  • Sometimes it may take a few days before you feel the full benefit from a bulk-forming laxative such as methylcellulose. However, if after several days you do not feel that your symptoms are improving, or if they get any worse, you should speak with your doctor again.

  • Try to eat a balanced diet containing high-fibre foods such as wholemeal and wholegrain breads and cereals, fruit and vegetables, brown rice and wholemeal pasta. If you are not used to a high-fibre diet, it may be best to increase the amount of fibre you eat gradually.

  • Keeping your body active will help you to keep your digestive system moving, so try to take some regular daily exercise.

  • You may wish to include some foods that contain sorbitol in your diet. Sorbitol is a naturally occurring sugar. It is not digested very well and draws water into your bowel which has an effect of softening stools. Fruits (and their juices) that have a high sorbitol content include apples, apricots, gooseberries, grapes (and raisins), peaches, pears, plums, prunes, raspberries and strawberries.

  • You can read more about how to prevent or treat constipation in the separate leaflets called Verstopfung (for adults) and Constipation in Children.

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Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the ones which can occur with methylcellulose. You will find a full list in the manufacturer's information leaflet supplied with your medicine. Speak with your doctor or pharmacist if any of the following continue or become troublesome.

Methylcellulose side-effects

Was kann ich tun, wenn ich das erlebe?

Excess wind (flatulence), bloating, tummy (abdominal) discomfort

These effects should soon settle down as your body adjusts but, if they continue or become troublesome, speak with your doctor or pharmacist

Wenn Sie andere Symptome bemerken, die Ihrer Meinung nach auf die Tabletten zurückzuführen sein könnten, sprechen Sie mit Ihrem Arzt oder Apotheker für weitere Ratschläge.

  • Bewahren Sie alle Medikamente außerhalb der Reichweite und Sicht von Kindern auf.

  • An einem kühlen, trockenen Ort aufbewahren, fern von direkter Hitze und Licht.

Wichtige Informationen über alle Medikamente

If you are due to have an operation or any dental treatment, tell the person carrying out the treatment which medicines you are taking.

If you buy any medicines, always check with a pharmacist that they are safe to take with your other medicines.

Nehmen Sie niemals mehr als die vorgeschriebene Dosis ein. Wenn Sie vermuten, dass Sie oder jemand anderes eine Überdosis dieses Medikaments eingenommen haben könnte, gehen Sie in die Notaufnahme Ihres örtlichen Krankenhauses. Nehmen Sie den Behälter mit, auch wenn er leer ist.

Dieses Medikament ist für Sie. Geben Sie es niemals an andere Personen weiter, auch wenn deren Zustand ähnlich erscheint wie Ihrer.

Bewahren Sie keine abgelaufenen oder unerwünschten Medikamente auf. Bringen Sie sie zu Ihrer örtlichen Apotheke, die sie für Sie entsorgt.

Wenn Sie Fragen zu diesem Medikament haben, fragen Sie Ihren Apotheker.

Berichten Sie Nebenwirkungen eines Medikaments oder Impfstoffs

Wenn Sie Nebenwirkungen bemerken, können Sie diese online über die Yellow Card-Website.

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Die Informationen auf dieser Seite wurden von qualifizierten Klinikern verfasst und begutachtet.

  • Nächste Überprüfung fällig: 4. Okt 2026
  • 5 Oct 2023 | Neueste Version

    Zuletzt aktualisiert von

    Michael Stewart, MRPharmS

    Begutachtet von

    Sid Dajani
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