Idrossido di alluminio
Revisione paritaria di Sid DajaniUltimo aggiornamento di Michael Stewart, MRPharmSUltimo aggiornamento 9 giu 2024
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Nota dell'autore clinico Michael Stewart 24/5/2021: Alu-Cap® capsules were discontinued in the UK in May 2019. At the time of review there are no branded or generic products solely containing aluminium hydroxide in the UK. Aluminium hydroxide may be available as a special order and is included as an ingredient in some antacid remedies. It may also still be available in other countries. This medicine leaflet is based on medical information accessed 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.
Aluminium hydroxide is taken for indigestion. It is also taken to control high phosphate levels in people with kidney disease.
Do not take the capsules at the same time as other medicines - leave two hours between taking aluminium hydroxide capsules and any other medicines.
L'effetto collaterale più comune è la stitichezza.
A colpo d'occhio
Aluminium hydroxide is a medicine used to treat indigestion or to control high phosphate levels.
For indigestion, take one capsule four times a day with meals and at bedtime.
If taking for high phosphate levels, your doctor will advise on the dose.
It is best to leave two hours between taking aluminium hydroxide and other medicines.
Constipation is a common side-effect; increase fibre and water if affected.
See your doctor if indigestion symptoms like difficulty swallowing or weight loss occur.
About aluminium hydroxide
Tipo di medicinale | An antacid |
Utilizzato per | As an antacid for indigestion; to control high phosphate levels in people with kidney disease |
Chiamato anche | Alu-Cap® (discontinued) |
Disponibile come | capsules |
Aluminium hydroxide is an antacid, which means that it neutralises excess stomach acid associated with indigestione. It also helps to protect the lining of your stomach from acid irritation.
Aluminium hydroxide can also reduce the amount of phosphate which your body absorbs from the food you eat. It combines with phosphate in your stomach, and this is then removed instead of being absorbed. Although aluminium hydroxide is sometimes prescribed for this purpose in people with certain kidney diseases, other medicines are usually used in preference to it.
Before taking aluminium hydroxide
To make sure this is the right treatment for you, before you take aluminium hydroxide capsules it is important that your doctor or pharmacist knows:
Se sei incinta o stai allattando.
Se hai problemi con il funzionamento del fegato o dei reni.
If you have been told you have low levels of phosphate in your blood.
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 aluminium hydroxide
Before you start taking aluminium hydroxide, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about aluminium hydroxide and will provide you with a full list of the side-effects which you may experience from taking it.
For indigestion in adults, take one capsule four times a day with meals and one at bedtime. The capsules are not suitable for children to take as an antacid. Antacids are best taken when symptoms are likely to occur.
If you are taking aluminium hydroxide to reduce the amount of phosphate in your body, your doctor will tell you how many capsules to take each day. You could be asked to take between 4-20 capsules a day. Take the capsules spaced out throughout the day with your meals.
Aluminium hydroxide can interfere with other medicines taken at the same time and can prevent them from being absorbed properly. It is best if you leave two hours between taking aluminium hydroxide and any other medicines.
Ottenere il massimo dal tuo trattamento
If you are taking aluminium hydroxide for indigestion
There are some foods that 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 at any time you develop any of the following symptoms, speak with your doctor as soon as possible: difficulty swallowing, loss of blood, weight loss or if you are being sick. These are symptoms sometimes associated with indigestion that your doctor will want to investigate further.
If you have been prescribed aluminium hydroxide for the management of kidney disease
Try to keep your regular appointment with your doctor so that your progress can be monitored. Your doctor is likely to want you to have blood tests from time to time.
Can aluminium hydroxide cause problems?
Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains the most common one associated with aluminium hydroxide. 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 aluminium hydroxide side-effects | Cosa posso fare se sperimento questo? |
Costipazione | Eat plenty of fibre such as fruit, vegetables and bran and drink plenty of water each day. If you are taking the capsules as an antacid, speak with your pharmacist for advice on a more suitable preparation |
Se si verificano altri sintomi che ritieni possano essere dovuti alle capsule, parla con il tuo medico o farmacista per ulteriori consigli.
How to store aluminium hydroxide
Tenere tutti i medicinali fuori dalla portata e dalla vista dei bambini.
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
Non assumere mai più della dose prescritta. Se sospetti che tu o qualcun altro possa aver assunto un sovradosaggio di questo medicinale, recati al pronto soccorso del tuo ospedale locale. Porta con te il contenitore, anche se è vuoto.
Questo medicinale è per te. Non darlo mai ad altre persone, anche se la loro condizione sembra essere la stessa della tua.
Non conservare medicinali scaduti o indesiderati. Portali alla tua farmacia locale che li smaltirà per te.
Se hai domande su questo medicinale, chiedi al tuo farmacista.
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Controlla le possibili interazioni tra farmaci, integratori e alimenti prima di assumerli insieme.
Domande frequenti
Can aluminium hydroxide be bought over the counter?
The information provided indicates that aluminium hydroxide is available as capsules and can be prescribed by a doctor or pharmacist for specific conditions. However, it does not explicitly state whether it can be bought without a prescription.
What is aluminium hydroxide used for?
Aluminium hydroxide primarily serves two main purposes. It is used as an antacid to neutralise excessive stomach acid, helping with indigestion symptoms and protecting the stomach lining. Additionally, it can reduce the absorption of phosphate from food, which is sometimes prescribed for individuals with certain kidney diseases to control high phosphate levels.
How does aluminium hydroxide work to reduce stomach acid?
Aluminium hydroxide neutralises the excess acid in the stomach. By doing so, it helps to alleviate symptoms associated with indigestion and provides a protective effect on the stomach lining against irritation caused by acid.
What should I do if I forget to take a dose of aluminium hydroxide?
The article does not provide specific instructions on what to do if a dose of aluminium hydroxide is missed. It is generally recommended to follow the specific instructions from your doctor or pharmacist regarding your medication regimen.
Are there any natural alternatives or lifestyle changes that can help with indigestion alongside taking aluminium hydroxide?
For indigestion, certain lifestyle adjustments can be beneficial. Avoiding foods and drinks known to worsen symptoms, such as peppermint, tomatoes, chocolate, spicy foods, hot drinks, coffee, and alcohol, may help. It's also advised to avoid large meals, as these can exacerbate indigestion.
Ulteriori letture e riferimenti
- Medicinali Completi BNF 89ª Edizione; Associazione Medica Britannica e Società Farmaceutica Reale di Gran Bretagna, Londra.
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: 30 May 2027
9 giu 2024 | Ultima versione

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