Lansoprazolo per ridurre l'acidità di stomaco
Zoton FasTab, Prevacid
Revisione paritaria di Sid DajaniUltimo aggiornamento di Michael Stewart, MRPharmSUltimo aggiornamento 4 Lug 2023
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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.
A colpo d'occhio
Lansoprazole is a medicine known as a proton pump inhibitor.
It reduces the amount of acid produced in your stomach.
It is used to treat conditions like stomach ulcers and acid reflux.
Take lansoprazole exactly as your doctor tells you, usually once a day before breakfast.
Common side-effects include stomach upset, diarrhoea, constipation, and headache.
Speak to your doctor if you have symptoms like difficulty swallowing or weight loss.
About lansoprazole
Tipo di medicinale | Inibitore della pompa protonica |
Utilizzato per | Gastric ulcer; duodenal ulcer; gastro-oesophageal reflux disease; Helicobacter pylori infection; Zollinger-Ellison syndrome; acid-related dyspepsia |
Chiamato anche (UK) | Zoton FasTab® |
Chiamato anche (USA) | Prevacid®; Prevacid SoluTab® |
Disponibile come | 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 'reflusso acido'.
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, un batterio presente nello stomaco, che può causare ulcere.
Before taking lansoprazole
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 lansoprazole it is important that your doctor or pharmacist knows:
Se sei incinta, stai cercando di avere un bambino o stai allattando.
Se hai problemi con il funzionamento del tuo fegato.
Se hai uno dei seguenti sintomi: difficoltà a deglutire, perdita di sangue, perdita di peso, o se stai vomitando.
Se hai mai avuto una reazione allergica a un medicinale.
Se stai assumendo altri medicinali. Questo include qualsiasi medicinale che stai assumendo e che è disponibile per l'acquisto senza prescrizione medica, così come i medicinali a base di erbe e complementari.
How to take lansoprazole
Before 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.
Ottenere il massimo dal tuo trattamento
Try 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.
Se sei in sovrappeso, esercita una pressione extra sullo stomaco e incoraggia i sintomi del reflusso acido. Perdere un po' di peso e seguire una dieta sana ed equilibrata potrebbe aiutarti.
Fumare aumenta la quantità di acido prodotto dallo stomaco e può peggiorare i tuoi sintomi. Se sei un fumatore, parla con il tuo medico o farmacista su come smettere.
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.
Can lansoprazole cause problems?
Along 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) | Cosa posso fare se sperimento questo? |
Stomach upset (such as feeling sick (nausea), stomach ache, or wind) | Attieniti a pasti semplici - evita cibi ricchi o piccanti |
Diarrea | Bevi molta acqua. Se continua o diventa grave, informa il tuo medico |
Costipazione | Cerca di seguire una dieta equilibrata e bevi diversi bicchieri d'acqua ogni giorno |
Mal di testa | Bevi molta acqua e chiedi al tuo farmacista di consigliarti un antidolorifico adatto. Se i mal di testa persistono, informa il tuo medico |
Sensazione di vertigini o stanchezza | Non guidare e non utilizzare strumenti o macchinari finché non ti senti meglio |
Dry mouth or throat, itchy skin rash | Se uno di questi diventa problematico, informa il tuo medico |
Importante: 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.
Se si verificano altri sintomi che ritieni possano essere dovuti al medicinale, parla con il tuo medico o farmacista per ulteriori consigli.
How to store lansoprazole
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Conservare in un luogo fresco e asciutto, lontano da fonti di calore e luce diretta.
Informazioni importanti su tutti i medicinali
Informazioni importanti su tutti i medicinali
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Questo medicinale è per te. Non darlo mai ad altre persone, anche se la loro condizione sembra essere la stessa della tua.
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Domande frequenti
Can I take lansoprazole at night?
Lansoprazole is usually taken once a day in the morning, about 30 minutes before breakfast. However, if your doctor has instructed you to take two doses a day, the second dose would typically be taken in the evening.
How long can I take lansoprazole?
The duration of your lansoprazole treatment depends on the condition it's being used for. For Helicobacter pylori eradication, it's usually 1-2 weeks. For acid-related dyspepsia, it's typically 2-4 weeks. If you have an ulcer, treatment might last for about 1-2 months. For acid reflux or Zollinger-Ellison syndrome, you'll take it for as long as needed to control your symptoms.
Does lansoprazole need to be taken on an empty stomach?
Yes, lansoprazole should be taken at least 30 minutes before a meal, ideally before breakfast. This is because food can reduce how much of the medicine your body absorbs, making it less effective.
Can I take two lansoprazole doses per day?
You should only take two doses of lansoprazole per day if your doctor has specifically told you to do so, for conditions like Helicobacter pylori eradication or Zollinger-Ellison syndrome. Your doctor will determine the correct dosage for your specific condition, and the instructions will be on your medication label.
What should I do if I forget to take a dose of lansoprazole?
If you forget a dose, take it as soon as you remember. However, if it's almost time for your next scheduled dose, skip the missed dose and continue with your regular dosing schedule. Do not take two doses at the same time to make up for a forgotten dose.
Can I take other indigestion remedies with lansoprazole?
It is important not to take other indigestion remedies within two hours before or two hours after taking lansoprazole. These remedies can interfere with how lansoprazole is absorbed by your body, making it less effective.
How often will my doctor review my lansoprazole treatment if I take it long-term?
If you are taking lansoprazole on a long-term basis, your doctor will want to review your treatment at least once a year. This helps to ensure that the medication is still appropriate and working well for you.
What are the signs of low magnesium levels from long-term lansoprazole use?
Long-term use of lansoprazole (for at least three months) can sometimes lead to low magnesium levels in your blood. Initial signs that this might be happening include feeling tired, dizzy or confused, and experiencing an irregular heartbeat (palpitations). If you notice these symptoms, you should inform your doctor.
Ulteriori letture e riferimenti
- 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.
Informazioni sull'autoreVisualizza il profilo completo

Michael Stewart, MRPharmS
Responsabile Revisione Foglietti Illustrativi – Contrattista, Farmacista
BPharm (Hons), MRPharmS
Michael è un farmacista comunitario che esercita nelle Midlands e nel South Yorkshire con oltre 20 anni di esperienza nel consigliare su farmaci e condizioni mediche. Ha una solida esperienza nella formazione sanitaria, avendo prodotto e tenuto corsi di formazione per team di farmacia e personale di strutture di assistenza residenziale, inclusi infermieri. Ha anche contribuito a consigli consultivi farmaceutici per la gestione di condizioni a bassa gravità nella comunità.
Informazioni sul recensore

Sid Dajani
Sultan Dajani si è laureato alla London School of Pharmacy nel 1994 ed è diventato il più giovane membro eletto del consiglio della Royal Pharmaceutical Society dalla sua fondazione nel 1842.
Storia dell'articolo
Le informazioni su questa pagina sono scritte e revisionate da clinici qualificati.
Articolo disponibile anche in Inglese, Tedesco, Spagnolo, Francese, Italiano, Portoghese, Hindi, Ebraico, Arabo, and Svedese.
Next review due: 3 Jan 2028
4 Lug 2023 | Ultima versione

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