Pharmacy Guide
Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.
Pharmacy Guide
Patient leaflets and SmPCs, drug interaction checker, official dosages and NHS pharmacy opening hours — all in one place.
Phosphate Sandoz
⚠ This medicine appears to have been discontinued
The electronic medicines compendium (emc) no longer publishes a Summary of Product Characteristics for this product, which usually means it is no longer marketed in the UK. The patient leaflet below is kept for reference, but the product may not be available.
If you were prescribed this medicine, other products containing Sodium acid phosphate may still be available. Do not stop your treatment — ask your pharmacist or GP what to use instead.
What you need to know before you take it
E PHOSPHATE SANDOZ Do not take Phosphate Sandoz
- if you are allergic to sodium acid phosphate or any of the other ingredients of Phosphate Sandoz (listed in Section 6). An allergic reaction may include rash, itching, diffculty breathing or swelling of the face, lips, throat or tongue. Warnings and precautions Talk to your doctor or pharmacist before taking Phosphate Sandoz. If you need to take these tablets for a long time it is likely that your doctor will monitor you closely and as part of this may want to monitor the phosphate levels in your blood. Other medicines and Phosphate Sandoz Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines. 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 take Phosphate Sandoz and your doctor or pharmacist will be able to decide what is suitable for you. Pregnancy and breast-feeding If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine. Driving and using machines Phosphate Sandoz should have no effect on your ability to drive or use machines. Phosphate Sandoz contains:
- Potassium: This medicine contains 123mg (3.1mmol) potassium per tablet. To be taken into consideration by patients with reduced kidney function or those on a controlled potassium diet.
- Sodium: This medicine contains 469mg (20.4mmol) sodium (main component of cooking / table salt) per tablet. This is equivalent to 23% of the recommended maximum daily dietary intake of sodium for an adult. Talk to your doctor or pharmacist if you need one or more tablets daily for a prolonged period, especially if you have kidney problems associated with high blood calcium or are on a controlled or low salt (sodium) diet e.g. for heart failure, hypertension, or pre-eclamptic toxaemia (dangerously high blood pressure during pregnancy).
- Sucrose: If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking this medicinal product.
All medicines can cause allergic reactions, although serious allergic reactions are very rare. Tell your doctor straight away if you get:
- any sudden wheeziness
- diffculty in breathing
- swelling of the eyelids, face or lips
- rash or itching (especially affecting your whole body) The following side effects have been reported with this medicine:
- Gastro-intestinal symptoms such as nausea (feeling sick) and diarrhoea 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 or search for 'MHRA Yellow Card' in the Google Play or Apple App Store. By reporting side effects you can help provide more information on the safety of this medicine.
How to take it
PHOSPHATE SANDOZ Always take this medicine exactly as described in this leaflet or as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure. The recommended dose is: Adults, adolescents and children 5 years and over For high blood calcium (hypercalcaemia): Up to 6 tablets daily. Your doctor will adjust your dose. For low blood phosphate due to vitamin D resistant bone disorders: 4-6 tablets daily. Children under 5 years For high blood calcium (hypercalcaemia): Up to 3 tablets daily. The doctor will adjust the dose. For low blood phosphate due to vitamin D resistant bone disorders: 2-3 tablets daily. Phosphate Sandoz should be dissolved in 1/3 to 1/2 a glass of water (50-70ml) and be 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. Do not take a double dose to make up for a forgotten tablet. If you have any further questions on the use of this medicine, ask your doctor or pharmacist.
Possible side effects
Phosphate Sandoz contains the active substance 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.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
Phosphate Sandoz is also used for the treatment of low blood phosphate 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).
How to store it
PHOSPHATE SANDOZ Keep this medicine out of the sight and reach of children. Do not use this medicine after the expiry date which is stated on the carton and tube after EXP. The expiry date refers to the last day of that month. Do not store above 25°C. Store in the original tube in order to protect from moisture. Keep the tube tightly closed. Do not throw away any medicines via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment. Recycle the empty packaging where possible.
6. FURTHER INFORMATION What Phosphate Sandoz contains The active substance is sodium acid phosphate. Each tablet contains 1936mg of sodium acid phosphate. The other ingredients are: Potassium bicarbonate, sodium bicarbonate, sodium saccharin, orange flavour 52.570 TP, polyethylene glycol 4000, sugar icing and citric acid anhydrous. 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 cartons of 5 tubes (100 tablets). Marketing Authorisation Holder ALTURiX Ltd 287 Upper Fourth Street Milton Keynes MK9 1EH
Manufacturer Elara Pharmaservices Limited 5 Garden Court Lockington Hall, Main Street Lockington, Derby DE74 2RH United Kingdom
This leaflet was last revised in September 2024
Frequently asked questions about Phosphate Sandoz
What is the active substance in Phosphate Sandoz?
The active substance in Phosphate Sandoz is sodium acid phosphate.
Where does this information come from?
This leaflet reproduces the patient information leaflet approved for Phosphate Sandoz, as published on the electronic medicines compendium (emc). The version printed inside your medicine’s packaging is the one that applies to you.
Can I get Phosphate Sandoz without a prescription?
Whether a medicine is available over the counter or on prescription only depends on its licence. Check the leaflet, or ask your pharmacist — they can tell you straight away.
About this leaflet
The text above reproduces the patient information leaflet approved for this medicine, restructured for easier reading.
- Source: electronic medicines compendium (emc), Datapharm
- Active substance: sodium acid phosphate
- Official document: view the original leaflet on emc →
⚕For healthcare professionals — Summary of Product Characteristics (SmPC)Full SmPC: dosage, interactions, contraindications, warnings+
4.1. Therapeutic indications
Hypercalcaemia associated with such conditions as hyperparathyroidism, multiple myelomatosis and malignancy.
Hypophosphataemia associated with vitamin D resistant rickets and vitamin D resistant hypophosphataemic osteomalacia.
4.2. Posology and method of administration
Posology
Dosage should be adjusted to suit the requirements of individual patients. Excessive dosage has been reported to produce hypocalcaemia in isolated cases. Particular care should therefore be taken to ensure appropriate dosage in the elderly.
Adults, adolescents and children 5 years and over
Hypercalcaemia: Up to 6 tablets daily (adjustment being made according to requirements).
Vitamin D resistant hypophosphateaemic osteomalacia: 4-6 tablets daily.
Children under 5 years
Hypercalcaemia: Up to 3 tablets daily (adjustment being made according to requirements).
Vitamin D resistant rickets: 2-3 tablets daily.
Method of administration
The tablets should be dissolved in 1/3 to 1/2 a glass of water (50-70ml) and be taken orally.
4.3. Contraindications
• Hypersensitivity to sodium acid phosphate anhydrous or to any of the excipients listed in section 6.1
4.4. Special warnings and precautions for use
In cases of impaired renal function associated with hypercalcaemia and in cases where restricted sodium intake is required, e.g. congestive cardiac failure, hypertension or pre-eclamptic toxaemia, the sodium (20.4mmol / 469mg per tablet) and potassium (3.1mmol / 123mg per tablet) content of these tablets should be taken into consideration. In cases of hypercalcaemia associated with impaired renal function and hyperphosphataemia, the main effect of oral phosphate is to bind calcium in the gut and thus reduce calcium absorption.
The effect of oral phosphate on serum phosphate is likely to be minimal, but close monitoring of serum levels is recommended.
Soft tissue calcification and nephrocalcinosis have been reported in isolated cases following intravenous therapy with phosphate. This is thought to be a function of dosage and rapidity of phosphate administration. While such effects appear less likely to occur with oral phosphates, careful surveillance of patients is recommended, especially if on long term therapy.
This medicinal product contains 123mg potassium per tablet. To be taken into consideration by patients with reduced kidney function or patients on a controlled potassium diet.
This medicinal product contains 469mg sodium per tablet, equivalent to 23% of the WHO recommended maximum daily intake of 2g sodium for an adult.
The maximum daily dose of this product is equivalent to 141% of the WHO recommended maximum daily intake for sodium. These tablets are considered high in sodium. This should be particularly taken into account for those on a low salt diet.
This medicinal product contains sucrose. Patients with rare hereditary problems of fructose intolerance, glucose-galactose malabsorption or sucrase-isomaltase insufficiency should not take this medicine.
4.5. Interaction with other medicinal products and other forms of interaction
Concurrent administrations of antacids, containing agents such as aluminium hydroxide, may result in displacement of calcium from binding to oral phosphate, thus reducing efficacy.
4.6. Fertility, pregnancy and lactation
The safety of this medicinal product in human pregnancy has not been formally studied, but the drug has been widely used for many years without ill-consequence.
4.7. Effects on ability to drive and use machines
This medicinal product has no or negligible influence on the ability to drive and use machines.
4.8. Undesirable effects
Apart from gastro-intestinal upsets, nausea and diarrhoea, very few side effects have been reported.
Reporting of suspected adverse reactions
Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the national reporting system in the United Kingdom: Yellow Card Scheme. Website: www.mhra.gov.uk/yellowcard or search for 'MHRA Yellow Card' in the Google Play or Apple App Store.
4.9. Overdose
Excessive dosage has been reported to produce hypocalcaemia in isolated cases. This has proved reversible when dosage has been adjusted.
💬 Ask about this leaflet
Ask anything about Phosphate Sandoz. The assistant answers only from this leaflet — if the leaflet does not cover it, it will say so. It does not give medical advice.
Answers come from the patient leaflet published on the electronic medicines compendium (emc). They are not medical advice. Ask a pharmacist or your GP if you are unsure. For urgent help call NHS 111, or 999 in an emergency.