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.
Cystopurin 3g granules for oral solution
⚠ 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 Potassium citrate may still be available. Do not stop your treatment — ask your pharmacist or GP what to use instead.
How to take it
CYSTOPURIN® Follow the directions below closely. You should ask your doctor or pharmacist if you are unsure how to use this medicine. Cystopurin is taken as a drink. Adults and the elderly:
- Take the contents of one sachet dissolved in a small glass of cold water (200ml), three times daily for two days.
- All six sachets must be taken to complete the course of treatment. Children over 6 years:
- Use only after advice from your doctor, and follow his/her directions carefully. Cystopurin is not recommended for children under 6 years. You should consult your doctor if symptoms return or persist after 48 hours of treatment.
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If you take more Cystopurin than you should: Tell your doctor straight away or contact the Accident and Emergency Department of your nearest hospital. Prolonged high doses can cause high blood levels of potassium (hyperkalaemia), which can cause abnormal heart rhythm. 4. POSSIBLE SIDE EFFECTS Like all medicines, Cystopurin can cause
Possible side effects
, although not everybody gets them. Some people may experience:
- Slight increase in passing urine.
- Stomach irritation. This can be minimised by diluting the content of the sachets with extra water or by taking it with or after meals. If you react badly to the product in any way, tell your doctor or pharmacist immediately. 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 store it
CYSTOPURIN® Keep out of sight and reach of children. This product should be stored in the original carton. Do not store above 25°C. Do not use Cystopurin after the expiry date which is stated at one end of the carton and on the sachet. The expiry date refers to the last day of that month.
Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment. 6. FURTHER INFORMATION What Cystopurin contains:
- The active substance is potassium citrate (3g).
- The other ingredients are mannitol (E421), citric acid (E330), aspartame (E951), cranberry flavour (flavour contains natural cranberry extracts with maltodextrin, silicon dioxide (E551), carmine (E120) and triacetin (E1518)). See Section 2 'Important information about some of the ingredients of Cystopurin' for aspartame advice. What Cystopurin looks like and contents of the pack: Cystopurin is available in packs of 6 sachets containing 3g of pink-brown granules. Marketing Authorisation Holder: Bayer plc, 400 South Oak Way, Reading, RG2 6AD, UK. Manufacturer: Pharmapac UK Ltd, Unit 20, Valley Road Business Park, Bidston, Wirral CH41 7EL, UK. Remember: If you have any doubts about using Cystopurin® correctly, seek the advice of your doctor or pharmacist. Further information about cystitis: Cystitis is a distressing condition caused by an infection and/or inflammation of the bladder. It is normally no more than a painful nuisance and only rarely becomes more serious. Cystitis will occur in 4 out of 5 women at least once in their lifetime, so it is a very common complaint and the attacks usually cause no lasting damage.
Cystitis can also occur in men and children, but this is quite rare and medical advice should be sought. There are two types of cystitis: bacterial cystitis and non-bacterial cystitis.
- Bacterial cystitis is caused by bacteria that reach the bladder from the bowel. This may occur during sexual intercourse, or be due to ineffective/infrequent hygiene.
- Non-bacterial cystitis can be caused by a number of triggers including certain soaps, deodorants, insufficient waterbased liquid intake, or even tight trousers. The most common symptoms of cystitis are:
- A sharp stinging sensation on passing water.
- An urge to pass water more frequently. How to avoid cystitis in the future: ✓ Try to drink plenty of fluids every day. ✓ Take care of your personal hygiene. It can help if you and your partner wash carefully before and after sexual intercourse. ✓ Always go to the toilet as soon as you feel the need to pass water. Keeping your bladder flushed will help it work normally. ✗ Try to avoid washing with perfumed soaps or using deodorants or perfumes around the vaginal area. Further information on cystitis can be obtained from your doctor or pharmacist or by contacting: Bayer plc, 400 South Oak Way, Reading, RG2 6AD, UK. This leaflet was last revised in November 2020. Cystopurin is a registered trademark. L0121
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
- Official document: view the original leaflet →
⚕For healthcare professionals — Summary of Product Characteristics (SmPC)Full SmPC: dosage, interactions, contraindications, warnings+
4.1. Therapeutic indications
For the symptomatic relief of mild urinary tract infections (cystitis).
4.2. Posology and method of administration
Orally: Dissolved in water.
Adults:
One 3g sachet, dissolved in 200mls of cold water, three times daily for two days. All six sachets must be taken to complete the treatment.
Elderly
As adults
Children
Not recommended for children under six years of age. For children over six years of age use adult dosage.
4.3. Contraindications
There are no specific contraindications but use with caution in patients with impaired renal function or cardiac disease.
4.4. Special warnings and precautions for use
Intended for short term treatment. Patients should seek doctor's advice if symptoms persist after 48 hours treatment.
This product also contains aspartame, a source of phenylalanine. This may be harmful to people with phenylketonuria. This medicine contains less than 1mmol sodium (23 mg) per sachet, that is to say essentially 'sodium-free'.
4.5. Interaction with other medicinal products and other forms of interaction
Concurrent administration of the following drugs may lead to hyperkalaemia: potassium sparing diuretics, ACE inhibitors, aliskiren, angiotensin-II receptor antagonists, ciclosporin and tacrolimus. Avoid concomitant use with methenamine. The activity of cardiac glycosides is to some extent dependent upon serum potassium levels. Therefore, there is a possible interaction and caution is advised.
4.6. Pregnancy and lactation
There is no, or inadequate epidemiological evidence of safety of the ingredients of Cystopurin sachets in human pregnancy but they have been in wide use for many years without apparent ill consequence. If drug therapy is needed in pregnancy, this drug can be used if there is no safer alternative. However, pregnant women should be advised to seek medical advice on the treatment of cystitis rather than using OTC medicines.
4.7. Effects on ability to drive and use machines
There is no evidence to suggest that the ability to drive or to use machines of the patient will be affected.
4.8. Undesirable effects
Some patients may experience mild diuresis.
Potassium salts may give rise to gastric irritation, the effects of which may be minimised by diluting sachet contents well with water. Doses may also be given with or after meals.
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 Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.
4.9. Overdose
Hyperkalaemia may occur on prolonged high dosage. (Each Cystopurin sachet contains 27.8 mmol K+). This may be controlled by a number of methods including the use of calcium gluconate, glucose or glucose and insulin, sodium bicarbonate, cationic exchange resins, haemodialysis or peritoneal dialysis.
💬 Ask about this leaflet
Ask anything about Cystopurin 3g granules for oral solution. 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.