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Alendronsäure bei Osteoporose

Fosamax, Binosto

It is very important that you carefully follow the instructions for taking alendronic acid - otherwise it can cause irritation and damage to your throat. You will find full instructions on the information leaflet provided with your medicine. See also the section called 'Taking alendronic acid', below.

If you buy any medicines, make sure your pharmacist knows that you are taking a bisphosphonate, as some medicines will prevent alendronic acid from working properly.

Good dental hygiene is particularly important with this treatment - this means that you must brush your teeth regularly, and have routine dental check-ups.

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About alendronic acid

Art des Arzneimittels

Bisphosphonate

Verwendet für

Osteoporose

Auch genannt

Sodium alendronate; Binosto®; Fosamax® Once Weekly
Combination brands: Fosavance®; Bentexo® (alendronic acid with olecalciferol/vitamin D3)

Verfügbar als

Tablets, soluble tablets and oral liquid

Osteoporosis is a bone disease which causes your bones to become brittle and fragile, making them prone to breaks and fractures. During our lifetime, old bone tissue is constantly being broken down and replaced by new bone. After the age of about 30-35 years, our bone begins to lose density because old bone is lost faster than new bone can replace it. Women in particular have an increased risk of developing osteoporosis, as they lose bone material rapidly after the menopause.

Alendronic acid belongs to a group of medicines known as bisphosphonates. These medicines slow down the rate at which old bone is lost. As your body continues to make new bone, this leads to an overall increase in bone density. This reduces your risk of broken bones and fractures. You may be prescribed alendronic acid to take once a day (10 mg strength tablets), or more commonly, once a week (70 mg strength tablets/medicine).

In the brands of tablets called Fosavance® and Bentexo®, alendronic acid is combined with a vitamin called colecalciferol (also known as vitamin D3). Colecalciferol helps your bones absorb calcium. Because our bodies naturally make colecalciferol from exposure to sunlight and also absorb small amounts from foods such as oily fish, many people do not need supplements of this vitamin. However, as we get older, the amount of colecalciferol we absorb naturally may reduce. This brand of tablet is suitable for people requiring supplements of colecalciferol alongside alendronic acid.

Before taking alendronic acid

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 alendronic acid it is important that your doctor knows:

  • Wenn Sie schwanger sind oder stillen.

  • If you have ever had any difficulties swallowing.

  • If you have had a stomach ulcer, stomach bleeding or any surgery on your upper digestive system within the previous year.

  • If you are due to have any dental treatment in the near future, or if you have not recently had a dental check-up.

  • Wenn Sie Probleme mit der Funktionsweise Ihrer Nieren haben.

  • If you are unable to sit upright for at least 30 minutes.

  • If you have been told you have low amounts of calcium in your blood.

  • Wenn Sie andere Arzneimittel einnehmen. Dazu gehören alle Arzneimittel, die Sie einnehmen und die rezeptfrei erhältlich sind, sowie pflanzliche und ergänzende Arzneimittel.

  • Wenn Sie schon einmal eine allergische Reaktion auf ein Arzneimittel hatten.

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How to take alendronic acid

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

  • If you are taking alendronic acid 10 mg tablets, take one tablet daily. If on any day you forget to take a dose, just take your tablet on the next day as usual. Do not take a double dose to make up for a missed dose.

  • If you are taking tablets containing alendronic acid 70 mg (brands Fosamax® Once weekly and Fosavance®), take one tablet once a week. You must take your dose on the same day of each week, so choose a day that best suits your routine. If you forget to take a dose on your usual day, take it on the following morning and then continue taking it on your chosen day when your next dose is due.

  • If you are taking alendronic acid 70 mg in 100 ml oral liquid medicine, take 100 ml (one unit) once a week. Take it on the same day of each week. If you forget to take a dose on your usual day, take it on the following morning and then continue taking it on your chosen day when your next dose is due.

Taking alendronic acid

It is important that you take alendronic acid in the correct way, as otherwise it can cause irritation and damage as it is swallowed:

  • Take the tablet/medicine first thing after getting up in the morning. Take it before you eat any food or have anything to drink other than water.

  • You must drink a large glassful of plain water (not mineral water) as you take your dose. If you are taking tablets, swallow the tablet whole - you must not chew, break, or crush alendronic acid tablets.

  • It is important that you take your dose while you are standing or sitting in an upright position.

  • Continue to sit or stand upright for 30 minutes after taking your dose - you must not lie down during this time.

  • Do not have anything to eat or drink (other than plain water), or take any other medicines during the 30 minutes after taking a dose.

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  • Try to keep your regular appointments with your doctor. This is so your doctor can check on your progress. It is likely you will need to have regular blood tests during this treatment.

  • If you are taking other medicines, wait at least 30 minutes after taking alendronic acid before taking your other medicines. If you buy any medicines 'over the counter', check with a pharmacist that they are suitable for you to take. This is because mineral supplements, iron preparations, and some indigestion remedies reduce the amount of alendronic acid which your body absorbs. This can make your treatment less effective.

  • Good dental hygiene is particularly important while you are taking alendronic acid - brush your teeth regularly and remember to have routine dental check-ups. Tell your dentist that you are taking alendronic acid, as some dental treatments may not be recommended for you.

  • Eating a well-balanced diet and taking regular exercise can help your bones stay strong. Remember to follow any exercise or dietary advice that your doctor gives to you.

  • Chemicals from tobacco can get into your bloodstream and can affect your bones, making bone loss worse. If you are a smoker, you should try to quit if possible. Ask your doctor or pharmacist for advice on how to stop smoking.

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Can alendronic acid 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 alendronic acid. 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.

Gemeinsame

alendronic acid side-effects (these affect fewer than 1 in 10 people)

Was kann ich tun, wenn mir das passiert?

Indigestion, abdominal pain, bloating, wind (flatulence), acid regurgitation, feeling sick (nausea)

Make sure you carefully follow the directions for taking alendronic acid and remain standing or sitting for at least half an hour afterwards. If the symptoms get worse, let your doctor know straightaway

Diarrhöe

Viel Wasser trinken, um den Flüssigkeitsverlust zu ersetzen

Verstopfung

Try to eat a well-balanced diet and drink several glasses of water a day

Headache, muscle or joint pain

Trinken Sie viel Wasser und lassen Sie sich von Ihrem Apotheker ein geeignetes Schmerzmittel empfehlen. Wenn die Schmerzen anhalten, informieren Sie Ihren Arzt

Feeling dizzy, itching

Bei Beschwerden sprechen Sie mit Ihrem Arzt

Less common, but possibly serious, side-effects

Was sollte ich tun, wenn ich dies erlebe?

Heartburn, pain or difficulty when you swallow

Stop taking alendronic acid and speak with your doctor as soon as possible - these can be signs of severe throat irritation

Pain in your thigh, hip, or groin

Speak with your doctor as soon as possible - these can be signs of a thighbone fracture

A loose tooth, or jaw pain with swelling or numbness

Speak with your doctor as soon as possible - these can be signs of a problem called osteonecrosis of the jaw

Black or bloody stools

Speak with your doctor as soon as possible - this can be a sign of an ulcer

Ear pain, discharge from an ear, ear infection

These could be signs of a problem called osteonecrosis of the ear. Speak with your doctor straightaway

Wenn Sie andere Symptome haben, von denen Sie glauben, dass sie auf das Arzneimittel zurückzuführen sind, sprechen Sie mit Ihrem Arzt oder Apotheker, um weiteren Rat zu erhalten.

How to store alendronic acid

  • Bewahren Sie alle Arzneimittel außerhalb der Reichweite und Sichtweite von Kindern auf.

  • An einem kühlen, trockenen Ort aufbewahren, vor direkter Hitze und Licht schützen.

Wichtige Informationen über alle Arzneimittel

Wichtige Informationen über alle Arzneimittel

Nehmen Sie niemals mehr als die verordnete Dosis ein. Wenn Sie den Verdacht haben, dass Sie oder jemand anderes eine Überdosis dieses Arzneimittels eingenommen haben könnte, suchen Sie sofort die Notaufnahme Ihres örtlichen Krankenhauses auf. Nehmen Sie den Behälter mit, auch wenn er leer ist.

Dieses Arzneimittel ist für Sie bestimmt. Geben Sie es niemals anderen Menschen, auch wenn deren Zustand derselbe zu sein scheint wie Ihrer.

Bewahren Sie abgelaufene oder nicht mehr benötigte Arzneimittel nicht auf. Bringen Sie sie zu Ihrer örtlichen Apotheke, die sie für Sie entsorgt.

Wenn Sie Fragen zu diesem Arzneimittel haben, wenden Sie sich an Ihren Arzt oder Apotheker.

Nebenwirkungen eines Medikaments oder Impfstoffs melden

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Weiterführende Literatur und Referenzen

Artikel Geschichte

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

  • Nächste Überprüfung fällig: 6. August 2026
  • 7 Aug 2023 | Neueste Version

    Zuletzt aktualisiert von

    Michael Stewart, MRPharmS

    Peer-Review durch

    Sid Dajani
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