Lansoprazole to reduce stomach acid
Zoton FasTab, Prevacid
Granskad av Sid DajaniSenast uppdaterad av Michael Stewart, MRPharmSLast updated 4 Jul 2023
Uppfyller patientens redaktionella riktlinjer
- Ladda nerLadda ner
- Dela
- Language
- Diskussion
- Ljudversion
- Add to preferred sources on Google
Lansoprazole reduces the amount of acid produced in your stomach.
Take your doses 30 minutes before breakfast when your stomach is empty. If you are asked to take two doses daily, take your first dose 30 minutes before breakfast and your second dose in the evening.
The most common side-effects are stomach upset and headache. These effects are generally mild and do not last long.
I den här artikeln:
Video picks for Gastrointestinal behandling
Fortsätt läsa nedan
About lansoprazole
Typ av medicin | Proton pump inhibitor |
Används för | Gastric ulcer; duodenal ulcer; gastro-oesophageal reflux disease; Helicobacter pylori infection; Zollinger-Ellison syndrome; acid-related dyspepsia |
Also called (UK) | Zoton FasTab® |
Also called (USA) | Prevacid®; Prevacid SoluTab® |
Tillgänglig som | Capsules, orodispersible (melt-in-the-mouth) tablets |
Acid is produced naturally in your stomach to help you digest food and to kill bacteria. This acid is irritant so your body produces a natural mucous barrier which protects the lining of your stomach. In some people, this barrier can break down allowing the acid to damage the stomach, causing inflammation, ulcers and other conditions. Other people can have a problem with the muscular band at the top of the stomach that keeps the stomach tightly closed. This may allow the acid to escape and irritate the oesophagus, causing heartburn. This is often referred to as 'halsbränna'.
Proton pump inhibitors such as lansoprazole stop cells in the lining of the stomach from producing too much acid. This helps to prevent ulcers from forming, or assists the healing process where damage has already occurred. By decreasing the amount of acid, they can also help to reduce the symptoms of acid reflux disease, such as heartburn.
Lansoprazole is also given as one part of a treatment to get rid of Helicobacter pylori, a bacterium found in the stomach, which can cause ulcers.
Before taking lansoprazole
Tillbaka till innehållSome 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 lansoprazole it is important that your doctor or pharmacist knows:
Om du är gravid, försöker bli gravid eller ammar.
If you have any problems with the way your liver works.
If you have any of the following symptoms: difficulty swallowing, loss of blood, weight loss, or if you are being sick (vomiting).
Om du någonsin har haft en allergisk reaktion mot en medicin.
Om du tar några andra läkemedel. Detta inkluderar alla läkemedel du tar som finns att köpa utan recept, samt växtbaserade och komplementära läkemedel.
Fortsätt läsa nedan
How to take lansoprazole
Tillbaka till innehållBefore you start this treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about lansoprazole and will provide you with a full list of the side-effects which you may experience from taking it.
Take lansoprazole exactly as your doctor tells you to. There are different strengths of tablets and capsules available so your doctor will tell you which is right for you. It is usually taken once a day in the morning. If you are taking it for either Helicobacter pylori eradication or for Zollinger-Ellison syndrome, it is likely you will be asked to take two doses a day. Your doctor will tell you which dose is right for you and the directions will also be on the label of the pack to remind you.
Lansoprazole should be taken at least 30 minutes before a meal, which is usually breakfast. This is because your body absorbs less lansoprazole after you have eaten a meal, so the medicine is less effective. If you have been asked to take two doses daily, take your first dose 30 minutes before breakfast and your second dose in the evening.
If you have been given capsules to take, swallow the capsule with a drink of water. Do not chew, crush or open the capsule before you swallow.
If you have been given orodispersible tablets (Zoton FasTabs®), you can swallow the tablet with a drink of water as usual, or you can place it on your tongue and allow it to 'melt' there before you swallow. Alternatively, you can stir it into a small amount of water to take it.
Do not take indigestion remedies during the two hours before or during the two hours after you take lansoprazole as they can interfere with the way lansoprazole is absorbed by your body.
If you forget to take a dose at your usual time, you can take it when you remember (unless it is nearly time for your next dose, in which case leave out the missed dose). Do not take two doses at the same time to make up for a forgotten dose.
Få ut det mesta av din behandling
Tillbaka till innehållTry to keep your regular appointments with your doctor. This is so your progress can be checked. If you are taking lansoprazole on a long-term basis your doctor will want to review your treatment at least once a year to make sure it is still right for you.
Typical courses of treatment last for one or two weeks if you are taking lansoprazole for Helicobacter pylori eradication. If you are taking it for acid-related dyspepsia, your treatment will typically last for two to four weeks. It will last for around one or two months if it is for an ulcer. For acid reflux or Zollinger-Ellison syndrome, your treatment will last for as long as is necessary to control your symptoms.
Some foods may make your symptoms worse. Foods and drinks that have been suspected of this include peppermint, tomatoes, chocolate, spicy foods, hot drinks, coffee, and alcoholic drinks. If it seems that a food is aggravating your symptoms, try avoiding it for a while to see if your symptoms improve. Also, try avoiding eating large meals, as these can make your symptoms worse too.
If you are overweight, it puts extra pressure on your stomach and encourages the symptoms of acid reflux. Losing some weight and eating a healthy balanced diet may help you.
Smoking increases the amount of acid produced by the stomach and may make your symptoms worse. If you are a smoker, speak with your doctor or pharmacist about how to quit.
Recent studies suggest that there may be a slight increase in the risk of bone fractures when proton pump inhibitors like lansoprazole are taken for longer than a year. If this affects you, your doctor will check that you are taking enough vitamin D and calcium to reduce this risk.
If you buy any medicines 'over-the-counter', always check with a pharmacist that they are safe to take alongside your other medicines.
Fortsätt läsa nedan
Can lansoprazole 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 some of the most common ones associated with lansoprazole. 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 of the following continue or become troublesome.
Common lansoprazole side-effects (these affect fewer than 1 in 10 people) | Vad kan jag göra om jag upplever detta? |
Stomach upset (such as feeling sick (nausea), stomach ache, or wind) | Håll dig till enkla måltider - undvik rik eller kryddstark mat |
Diarré | Drink plenty of water. If it continues or becomes severe, let your doctor know |
Förstoppning | Try to eat a well-balanced diet and drink several glasses of water each day |
Huvudvärk | Drick mycket vatten och be din apotekare rekommendera en lämplig smärtstillande. Om huvudvärken fortsätter, informera din läkare |
Feeling dizzy or tired | Kör inte och använd inte verktyg eller maskiner förrän du mår bättre |
Dry mouth or throat, itchy skin rash | If any of these become troublesome, let your doctor know |
Viktigt: long-term use of lansoprazole (for at least three months) may lead to low levels of magnesium in your blood. Initial signs this might be happening include feeling tired, dizzy or confused and an irregular heartbeat (palpitations). Let your doctor know if you think this applies to you.
Om du upplever några andra symtom som du tror kan bero på medicinen, tala med din läkare eller apotekare för vidare råd.
How to store lansoprazole
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 någon 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.

Osäker på att blanda mediciner?
Kontrollera möjliga interaktioner mellan läkemedel, kosttillskott och livsmedel innan du tar dem tillsammans.
Vidare läsning och referenser
- Manufacturer's PIL, Zoton® FasTab; Pfizer Ltd, The electronic Medicines Compendium. Dated November 2022.
- Manufacturer's PIL, Lansoprazole 15 mg and 30 mg Gastro-resistant Capsules; Krka UK Ltd, The electronic Medicines Compendium. Dated January 2020.
- Mediciner Komplett BNF 89:e Utgåvan; Brittiska Läkarföreningen och Kungliga Farmaceutiska Sällskapet i Storbritannien, London.
Fortsätt läsa nedan
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: 3 Jul 2026
4 Jul 2023 | Senaste versionen

Fråga, dela, anslut.
Bläddra i diskussioner, ställ frågor och dela erfarenheter inom hundratals hälsorelaterade ämnen.
Anmäl dig till Patientens nyhetsbrev
Din veckovisa dos av tydliga, pålitliga hälsoråd - skrivna för att hjälpa dig känna dig informerad, självsäker och i kontroll.
By subscribing you accept our Sekretesspolicy. Du kan avsluta prenumerationen när som helst. Vi säljer aldrig dina uppgifter.