What is a Patient Information Leaflet and why is it useful?

The Patient Information Leaflet (PIL) is the leaflet included in the pack with a medicine. It is written for patients and gives information about taking or using a medicine. It is possible that the leaflet in your medicine pack may differ from this version because it may have been updated since your medicine was packaged.

Below is a text only representation of the Patient Information Leaflet. The original leaflet can be viewed using the link above.

The text only version may be available in large print, Braille or audio CD. For further information call emc accessibility on 0800 198 5000. The product code(s) for this leaflet is: 44490/0002.

Phosphate Sandoz


Phosphate Sandoz

Effervescent Tablets

Sodium acid phosphate

The name of your medicine is Phosphate Sandoz Effervescent Tablets and will be referred to as Phosphate Sandoz throughout the rest of this leaflet.

Read all of this leaflet carefully before you start taking this medicine.

  • Keep this leaflet. You may need to read it again.
  • If you have any further questions, ask your doctor or pharmacist.
  • This medicine has been prescribed for you. Do not pass it on to others. It may harm them, even if their symptoms are the same as yours.
  • If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet, please tell your doctor or pharmacist.

In this leaflet:

1. What Phosphate Sandoz is and what it is used for
2. Before you take Phosphate Sandoz
3. How to take Phosphate Sandoz
4. Possible side effects
5. How to store Phosphate Sandoz
6. Further information


Phosphate Sandoz contains the active ingredient sodium acid phosphate.

Phosphate Sandoz is used for the treatment of high blood calcium caused by conditions such as:

  • overactive parathyroid glands (hyperparathyroidism)
  • a cancer of the blood (multiple myelomatosis) and in other cancers.

Phosphate Sandoz is also used for the treatment of low blood potassium caused by a bone disease that does not respond to treatment with vitamin D (vitamin D resistant rickets) and a bone softening condition (vitamin D resistant hypophosphataemic osteomalacia).


Do not take Phosphate Sandoz if you

  • are allergic (hypersensitive) to sodium acid phosphate or any of the other ingredients of Phosphate Sandoz (see list of ingredients in Section 6). An allergic reaction may include rash, itching, difficulty breathing or swelling of the face, lips, throat or tongue.

Take special care with Phosphate Sandoz

  • Each tablet contains 123mg Potassium (3.1mmol). This should be taken into consideration if you have reduced kidney function or are on a controlled potassium diet.
  • Each tablet contains 469mg Sodium (20.4mmol). This should be taken into consideration if you are on a controlled sodium diet e .g. for heart failure, hypertension, or pre-eclamptic toxaemia (dangerously high blood pressure during pregnancy).
  • If you have been told by your doctor that you have an intolerance to some sugars please be aware that the tablets contain sucrose.

Please tell your doctor if any of the above apply to you.

Taking other medicines

You should tell your doctor if you are taking or have taken any medicines, including those obtained without a prescription. In particular, the following medicines may interact with your Phosphate Sandoz:

  • antacids (for indigestion and heartburn) (these can be bought without prescription).

It may still be all right for you to be given Phosphate Sandoz and your doctor will be able to decide what is suitable for you.

Pregnancy and breast-feeding

Tell your doctor if you are pregnant or breast-feeding and your doctor will decide if it is OK for you to be given Phosphate Sandoz tablets.

Ask your doctor or pharmacist for advice before taking any medicine.

Driving and using machines

Phosphate Sandoz should have no effect on your ability to drive or use machines.



Always take Phosphate Sandoz exactly as your doctor has told you. You should check with your doctor or pharmacist it you are not sure.

The usual dose is:


For hypercalcaemia: up to 6 tablets daily. Your doctor will adjust your dose.

For vitamin D resistant hypophosphateaemic osteomalacia: the dose is 4-6 tablets daily.

Children under 5 years

For hypercalcaemia: up to 3 tablets daily. The doctor will adjust the dose.

For vitamin D resistant rickets: the dose is 2-3 tablets daily.

Phospshate Sandoz should be dissolved in ⅓ to ½ a glass of water and taken by mouth.

If you take more Phosphate Sandoz than you should

Go to the nearest casualty department or contact your doctor immediately. Take your tablet container with you.

If you forget to take Phosphate Sandoz

If you miss a dose, take one as soon as you can. If you have missed several doses, tell your doctor.

If you have any further questions on the use of this product, ask your doctor or pharmacist.


Like all medicines, Phosphate Sandoz can cause side effects, although not everybody gets them.

All medicines can cause allergic reactions, although serious allergic reactions are very rare.

Tell your doctor straight away if you get:

  • any sudden wheeziness
  • difficulty in breathing
  • swelling of the eyelids, face or lips
  • rash or itching (especially affecting your whole body)
  • gastro-intestinal symptoms such as nausea (feeling sick) and diarrhoea

If any of the side effects gets serious, or if you notice any side effects not listed in this leaflet, please tell your doctor or pharmacist.

Reporting of side effects

If you get any side effects talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme at www.mhra.gov.uk/yellowcard. By reporting side effects you can help provide more information on the safety of this medicine.


Keep out of the sight and reach of children.

Do not use the drug after the date indicated on the carton. Do not store above 25°C. Store in the original container. Keep the container tightly closed

Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer needed. These measures will help to protect the environment.


What Phosphate Sandoz contains

The active substance is sodium acid phosphate.

Each tablet contains the equivalent of 1.936g of sodium acid phosphate.

The other ingredients are:

Potassium bicarbonate, sodium bicarbonate, sodium saccharin, orange flavour 52.570 TP, polyethylene glycol 4000, sugar icing CP, citric acid anhydrous, and water.

What Phosphate Sandoz looks like and contents of the pack

The tablets are round, white and effervescent and are available in Polypropylene (plastic) tubes of 20 effervescent tablets in boxes of 5 tubes (100 tablets).

Marketing Authorisation Holder



Kymos Pharma Services, S.L.
Ronda de Can Fatjó, 7B
(Parque Tecnológico del Vallès)
Cerdanyola del Vallès 08290

This medicinal product is authorised in the Member States of the EEA under the following names:

Phosphate Sandoz

This leaflet was last revised in

July 2020