Zoledronsäure

About zoledronic acid

Zoledronic acid, a bisphosphonate, is prescribed for the treatment of a number of different problems which affect bones. It is prescribed as a treatment for Osteoporose, and it is also used to prevent bone damage in people with Morbus Paget des Knochens. It is also given as a treatment for people with some cancers in order to reduce bone damage and blood calcium levels.

Osteoporosis is a bone disease which causes 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. As we get older, our bone begins to lose density because old bone is lost faster than new bone can replace it. Zoledronic acid slows down the rate at which old bone is lost and this leads to an overall increase in bone density.

In Paget's disease of bone, zoledronic acid works on bones to make them stronger and help prevent bone thickening. This helps ease symptoms such as pain, bone damage and fracture.

In some cancers there can be an excessive breakdown of bone. As this happens, calcium is lost from the bone and seeps into the blood, leading to higher than normal levels of calcium in the blood. This is called hypercalcaemia. Zoledronic acid binds to bone and reduces the rate at which it is broken down. This helps to strengthen bones and prevents the loss of calcium. This in turn reduces the high levels of calcium in the blood.

Before having zoledronic 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 treatment it is important that your doctor knows:

• If you are pregnant or breastfeeding. Zoledronic acid is not suitable for women who could become pregnant.

• If you are due to have any dental treatment in the near future, or if you have nicht recently had a dental check-up.

• Wenn Sie eine Herzkrankheit haben.

• Wenn Sie Probleme mit der Funktionsweise Ihrer Nieren oder Ihrer Leber haben.

• Wenn Sie andere Medikamente einnehmen. Dazu gehören alle Medikamente, die Sie einnehmen und die ohne Rezept erhältlich sind, sowie pflanzliche und ergänzende Medikamente.

• Wenn Sie jemals eine allergische Reaktion auf ein Medikament hatten.

How you will be given zoledronic acid

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

• Zoledronic acid will be given to you in a hospital clinic. It will be administered by intravenous infusion - this means that it is injected slowly (over 15 minutes or so) into one of your veins.

• The number of doses you will be given will depend upon the reason why it has been prescribed for you. Many people require only a single dose, although repeat doses can be required for people with osteoporosis and in some cancers.

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• It is important that you do not become dehydrated during treatment with zoledronic acid. Your doctor will advise how much water you need to drink - this is usually one or two large glassfuls before and after treatment.

• If you have osteoporosis or Paget's disease of bone, it may be necessary for you to take supplements of calcium and vitamin D alongside this treatment. If so, your doctor will prescribe these for you.

• Good dental hygiene is important during treatment with this medicine - this means that you must brush your teeth regularly and have regular dental check-ups. You should also make sure that your dentist is aware that you have had zoledronic acid, as some dental treatments may not be recommended for you.

• Remember to keep your regular appointments with your doctor so that your progress can be monitored. You may need to have blood tests following this treatment.

• You should avoid becoming pregnant whilst you are being treated with zoledronic acid. Make sure you have discussed with your doctor which types of contraception are suitable for you and your partner.

Can zoledronic 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 zoledronic 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.

Wenn Sie andere Symptome bemerken, die Ihrer Meinung nach auf das Medikament zurückzuführen sind, sprechen Sie mit Ihrem Arzt oder Apotheker für weitere Ratschläge.

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