Misoprostol tablets for stomach ulcers
Cytotec
Granskad av Sid DajaniSenast uppdaterad av Michael Stewart, MRPharmSLast updated 11 Mar 2025
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Misoprostol tablets are taken to prevent or treat stomach or duodenal ulcers.
Take the tablets with a meal or snack.
The most common side-effect is diarrhoea. If this happens, drink plenty of water.
At a glance
Misoprostol is a medicine that helps prevent and treat stomach and duodenal ulcers.
It works by replacing natural protective substances in your stomach called prostaglandins.
It is often used if you are taking painkillers like NSAIDs, which can cause ulcers.
Take misoprostol tablets after food or with a snack, as directed by your doctor.
Do not take misoprostol if you are pregnant, as it can harm an unborn baby.
Diarrhoea is a very common side-effect; drink plenty of water if this occurs.
If you forget a dose, take it with a snack unless it's nearly time for your next dose.
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About misoprostol
Typ av medicin | A prostaglandin analogue anti-ulcer medicine |
Används för | To help prevent stomach and duodenal ulcers; to treat an existing stomach or duodenal ulcer |
Även kallad | Cytotec®; |
Tillgänglig som | Tabletter |
Misoprostol is similar to naturally made protective substances in your body, called prostaglandins. Prostaglandins help to protect the lining of your stomach and intestines. Taking misoprostol will help prevent you from getting ulcers in your stomach and the part of your intestines next to your stomach, which is called the duodenum.
Ulcers in these areas are often caused by taking painkillers known as non-steroidal anti-inflammatory drugs (or NSAIDs for short). Two common examples of these medicines are diclofenac and naproxen - medicines often taken by people with arthritis. NSAIDs can reduce the natural amount of prostaglandins in your stomach and intestines, which causes indigestion and can lead to ulcers forming. Misoprostol tablets will replace your natural prostaglandins so that you can continue getting benefit from your NSAID painkiller. If you already have an ulcer, misoprostol will help it to heal.
Misoprostol is also available in combination with the NSAID diclofenac. Combination brands of tablet are sometimes prescribed for people with arthritis. Taking a combination tablet can help to reduce the total number of tablets that you need to take each day.
Occasionally, misoprostol may be prescribed for a use which is not covered by this leaflet. If you have been prescribed misoprostol for a reason other than those listed above, you should ask your doctor if you have any questions about your treatment.
Before taking misoprostol
Tillbaka till innehållSome medicines are not suitable for people with certain conditions, and sometimes a medicine can only be used if extra care is taken. For these reasons, before you start taking misoprostol it is important that your doctor knows:
Om du är gravid, försöker bli gravid eller ammar.
If you have been told that you have an inflammatory bowel disease, such as ulcerative colitis or Crohn's disease.
If you have any of the following: heart disease, low or high blood pressure, blood vessel disease.
Om du tar eller använder några andra läkemedel. Detta inkluderar alla läkemedel du tar som finns att köpa utan recept, samt växtbaserade och komplementära läkemedel.
Om du någonsin har haft en allergisk reaktion mot en medicin.
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How to take misoprostol
Tillbaka till innehållBefore you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about misoprostol, and will also provide you with a full list of side-effects which you could experience from taking it.
Take the tablets exactly as your doctor tells you to. You will be asked to take one tablet either two, three or four times a day. Your doctor or pharmacist will tell you which of these doses is right for you, and this information will also be printed on the label of the pack of tablets to remind you about what was said to you. Each time you take a dose, take the tablet just after eating a meal or with a snack.
If you forget to take a dose, take it as soon as you remember (with a snack). However, if when you remember it is nearly time for your next dose then leave out the forgotten dose. Do not take two doses together to make up for a missed dose.
Få ut det mesta av din behandling
Tillbaka till innehållFörsök att hålla dina regelbundna möten med din läkare. Detta är så att din läkare kan följa upp din utveckling.
If you are taking misoprostol because you already have an ulcer then you will be prescribed a course of treatment lasting 4-8 weeks. If you are taking misoprostol to prevent you from getting an ulcer then your treatment is likely to be long-term, especially if you are taking anti-inflammatory medicines regularly. Continue to take misoprostol until your doctor advises you otherwise.
If you need to take an indigestion remedy, you should choose one that does not contain magnesium. This is because magnesium can increase the risk of diarrhoea as a side-effect. Your pharmacist will be able to give you advice about which antacids and other medicines are suitable for you to buy to take alongside misoprostol.
It is very important that you do not become pregnant while on misoprostol. This is because misoprostol is harmful to unborn babies. If you have not yet been through the menopause and this is something which could be a concern for you, make sure you ask your doctor about what contraception is suitable for you and your partner before you start taking misoprostol.
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Can misoprostol cause problems?
Tillbaka till innehållAlong with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains the most common ones associated with misoprostol. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any continue or become troublesome.
Very common misoprostol side-effects (these affect more than 1 in 10 people) | Vad kan jag göra om jag upplever detta? |
Diarré | Make sure you take misoprostol tablets after food to minimise this. Drink plenty of water to replace lost fluids. If it continues or becomes severe, speak with your doctor for further advice |
Rash | If troublesome, speak with your doctor for advice |
Common misoprostol side-effects (these affect fewer than 1 in 10 people) | Vad kan jag göra om jag upplever detta? |
Feeling sick (nausea) or being sick (vomiting), tummy (abdominal) pain, indigestion, wind | Make sure you take misoprostol tablets after food. Avoid rich and spicy meals |
Vaginal bleeding | Prata med din läkare om detta |
Känner dig yr | If this happens, do not drive and do not use tools or machines while affected |
Headache, constipation | If either of these becomes troublesome, drink plenty of water and ask your pharmacist to recommend a suitable remedy |
Om du upplever några andra symtom som du tror kan bero på tabletterna, tala med din läkare eller apotekare för vidare råd.
How to store misoprostol
Tillbaka till innehållFörvara alla läkemedel utom räckhåll och synhåll för barn.
Förvara på en sval, torr plats, borta från direkt värme och ljus.
Viktig information om alla läkemedel
Tillbaka till innehållViktig information om alla läkemedel
Ta aldrig mer än den föreskrivna dosen. Om du misstänker att du eller någon annan kan ha tagit en överdos av denna medicin, gå till akutmottagningen på ditt lokala sjukhus. Ta med behållaren, även om den är tom.
Denna medicin är för dig. Ge den aldrig till andra människor även om deras tillstånd verkar vara detsamma som ditt.
Om du ska genomgå en operation eller tandbehandling, informera den som utför behandlingen om vilka mediciner du tar.
Behåll inte föråldrade eller oönskade mediciner. Ta dem till ditt lokala apotek som kommer att ta hand om dem åt dig.
Om du har några frågor om denna medicin, fråga din apotekare.
Rapportera biverkningar av ett läkemedel eller vaccin
Om du upplever biverkningar kan du rapportera dem online via Yellow Card website.

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Vanliga frågor
Can I take misoprostol if I am breastfeeding?
The article states that if you are breastfeeding, you should inform your doctor before starting misoprostol. This suggests that there might be considerations or advice specific to breastfeeding mothers that your doctor would need to provide.
How long will I usually need to take misoprostol for?
If you are taking misoprostol to heal an existing ulcer, your treatment course will typically last for 4-8 weeks. However, if you are using misoprostol to prevent ulcers, especially while regularly taking anti-inflammatory medicines, your treatment is likely to be long-term. You should continue taking it until your doctor tells you otherwise.
What kind of indigestion remedies can I take with misoprostol?
When choosing an indigestion remedy, it's important to select one that does not contain magnesium, as magnesium can increase the risk of diarrhoea when taken with misoprostol. Your pharmacist can provide advice on suitable antacids and other remedies to use alongside misoprostol.
What should I do if I forget to take a dose of misoprostol?
If you miss a dose, take it as soon as you remember, accompanied by a snack. However, if it's almost time for your next scheduled dose, you should skip the forgotten dose completely. Do not take two doses at once to compensate for the missed one.
Are there any health conditions that would prevent me from taking misoprostol?
Before starting misoprostol, it's important to tell your doctor if you have inflammatory bowel disease (like ulcerative colitis or Crohn's disease), heart disease, low or high blood pressure, or blood vessel disease. These conditions may affect whether misoprostol is suitable for you or if extra care is needed during your treatment.
Can misoprostol be used for purposes other than treating or preventing ulcers?
Occasionally, misoprostol might be prescribed for uses not specifically covered in the article. If your doctor has prescribed it for a reason other than preventing or treating stomach and duodenal ulcers, you should ask them if you have any questions about your treatment.
What should I do if I experience vaginal bleeding while taking misoprostol?
If you experience vaginal bleeding as a side-effect of misoprostol, you should speak with your doctor for advice.
Vidare läsning och referenser
- Manufacturer's PIL, Cytotec® 200 microgram tablets; Pfizer Limited, The electronic Medicines Compendium. Dated October 2020.
- Mediciner Komplett BNF 89:e Utgåvan; Brittiska Läkarföreningen och Kungliga Farmaceutiska Sällskapet i Storbritannien, London.
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About the authorView full bio

Michael Stewart, MRPharmS
Medicine Leaflet Review Manager – Contractor, Pharmacist
BPharm (Hons), MRPharmS
Michael is a community pharmacist practicing in the Midlands and South Yorkshire with more than 20 years’ experience advising on medicines and medical conditions. He has a strong background in healthcare training, having produced and delivered training courses for pharmacy teams and staff of residential care settings, including nurses. He has also contributed to pharmacy advisory boards for the management of low acuity conditions in the community.
About the reviewer

Sid Dajani
Sultan Dajani qualified at the London School of Pharmacy in 1994 and became the youngest elected member of the Royal Pharmaceutical Society council since its founding in 1842.
Artikelhistorik
Informationen på denna sida är skriven och granskad av kvalificerade kliniker.
Next review due: 10 Mar 2028
11 Mar 2025 | Senaste versionen

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