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Care Potassium Citrate Mixture - 200ml

Care Potassium Citrate Mixture - 200ml

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  • ✔️ Alkalises urine to relieve cystitis burning and stinging
  • ✔️ Provides symptomatic relief from frequent, urgent urination
  • ✔️ Suitable for adults seeking fast-acting OTC cystitis relief
  • ✔️ Sodium-free formula ideal for low-sodium dietary needs
  • ✔️ 200ml bottle delivers multiple doses for short-term treatment

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What Is Potassium Citrate Mixture for Cystitis?

 

If you have ever had cystitis, you will know just how uncomfortable it can be. That urgent, burning need to urinate — sometimes every few minutes — is exhausting and disruptive. Potassium citrate mixture cystitis treatment has been used in the UK for decades as a first-line, over-the-counter option to ease those symptoms quickly. Care Potassium Citrate Mixture 200ml is a licensed oral solution available without a prescription, designed to bring relief from the stinging discomfort of mild, uncomplicated urinary tract infections (UTIs) in adults.

Cystitis is one of the most common infections in women, with the NHS estimating that around half of all women will experience it at least once in their lifetime. The condition occurs when bacteria — most often Escherichia coli — enter the bladder and cause inflammation. While antibiotics are sometimes needed, mild cases can often be managed with symptomatic relief. You can explore our full range of cystitis and bladder infection treatments to find the right option for you.

 

How Does Care Potassium Citrate Mixture Work?

 

The mechanism is straightforward. Potassium citrate is an alkalising agent. When you drink it, it is absorbed into your bloodstream and then excreted by your kidneys into your urine. This raises the pH of your urine — making it less acidic — which in turn reduces the irritation to the lining of the bladder and urethra that causes that characteristic burning sensation.

  • Potassium citrate is absorbed from the gastrointestinal tract after oral ingestion.
  • It is metabolised and excreted by the kidneys into the urine.
  • Urinary pH rises, reducing acidity.
  • Less acidic urine causes less irritation to inflamed bladder and urethral tissue.
  • Burning and stinging on urination is reduced as a result.

It is worth noting that potassium citrate does not kill bacteria. It treats the symptoms, not the underlying infection. If your symptoms do not improve within 48 hours, or if you develop a fever, back pain, or blood in your urine, you should seek medical advice promptly.

 

Who Should Use Care Potassium Citrate Mixture?

 

This product is suitable for adults who are experiencing the early, mild symptoms of cystitis — particularly the burning or stinging sensation when passing urine, and the frequent urge to urinate. It is most commonly used by women, though men can also develop cystitis and may benefit from this treatment. That said, cystitis in men is less common and may indicate an underlying condition, so men should consult a GP if symptoms arise.

Care Potassium Citrate Mixture may be appropriate for you if:

  • You are an adult experiencing mild, uncomplicated cystitis symptoms.
  • You have no history of kidney disease, heart failure, or high potassium levels.
  • You are not currently taking potassium-sparing diuretics or ACE inhibitors.
  • Your symptoms have been present for fewer than 48 hours and are not severe.

 

How Does Care Potassium Citrate Mixture Compare to Sodium Citrate Sachets?

 

Feature Care Potassium Citrate Mixture 200ml Sodium Citrate Sachets (e.g. Cymalon)
Active ingredient Potassium citrate Sodium citrate
Form Oral liquid mixture Dissolvable powder sachet
Suitable for low-sodium diets Yes No — contains sodium
Suitable for kidney disease No — seek medical advice No — seek medical advice
OTC availability Yes Yes

 

How Should You Store Care Potassium Citrate Mixture?

 

Store Care Potassium Citrate Mixture below 25°C, away from direct sunlight and heat. Keep the bottle tightly closed when not in use, and always store it out of the reach and sight of children. Do not use the product after the expiry date printed on the label. If you are looking for other health products to keep in your medicine cabinet, our women's health range includes a variety of useful OTC treatments.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Care Potassium Citrate Mixture 200ml specifications
Treatment category Urinary tract / Cystitis relief
Mechanism of action Alkalises urine to reduce acidity and relieve burning discomfort
Effective for Mild, uncomplicated cystitis symptoms in adults
Suitable for Adults (18 years and over)
Active ingredient Potassium Citrate
Pack size 200ml
UK classification General Sale List (GSL)
Drug class Urinary alkalinising agent
Preparation Oral mixture / solution
Route of administration Oral

Specifications of Care Potassium Citrate Mixture 200ml

 

What Is Care Potassium Citrate Mixture and What Is It Used For?

 

Care Potassium Citrate Mixture is an oral liquid medicine containing potassium citrate as its active ingredient. It is used to relieve the symptoms of cystitis — specifically the burning, stinging sensation when passing urine and the frequent urge to urinate. It works by making the urine less acidic, which reduces irritation to the bladder and urethra. It is available over the counter and does not require a prescription for adults.

Cystitis is inflammation of the bladder, most commonly caused by a bacterial infection. The NHS notes that it is particularly common in women due to the shorter length of the female urethra, which makes it easier for bacteria to reach the bladder. Potassium citrate mixture provides symptomatic relief while your immune system — or, if needed, antibiotics — addresses the underlying cause.

 

What Do You Need to Know Before Using Care Potassium Citrate Mixture?

 

Before using this product, it is important to check whether it is appropriate for you. Do not use Care Potassium Citrate Mixture if any of the following apply:

  • You have kidney disease or impaired kidney function.
  • You have heart disease or heart failure.
  • You have high potassium levels in your blood (hyperkalaemia).
  • You are allergic to potassium citrate or any other ingredient in the mixture.
  • You are pregnant or breastfeeding — seek medical advice first.
  • You are under 6 years of age.
  • You have symptoms suggesting a kidney infection: fever, chills, back or loin pain, nausea, or vomiting.

The following medicines may interact with potassium citrate. Tell your pharmacist or doctor if you are taking:

  • Potassium-sparing diuretics (e.g. spironolactone, amiloride).
  • ACE inhibitors (e.g. ramipril, lisinopril).
  • Angiotensin receptor blockers (ARBs).
  • Non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen.
  • Other potassium supplements.

 

How Should You Use Care Potassium Citrate Mixture?

 

Always use this medicine exactly as described in the patient information leaflet. If you are unsure, ask your pharmacist. Drinking plenty of water alongside this treatment — the NHS recommends staying well hydrated during a UTI — can help flush bacteria from the bladder and support recovery. You can also browse our pain relief range if you need additional comfort during recovery.

  1. Measure the correct dose using the measuring cup or spoon provided.
  2. Dilute the dose in a full glass of water (approximately 200ml).
  3. Drink the diluted mixture slowly.
  4. Take with or after food to reduce the chance of stomach upset.
  5. Repeat up to three times daily as directed.
  6. Do not use for more than 48 hours without seeking medical advice.
Age Group Dose Frequency Maximum Duration
Adults (18+) 10ml diluted in water Three times daily 48 hours (without medical advice)
Children under 6 Not recommended
Children 6–18 Only on medical advice As directed by doctor As directed by doctor

 

What Are the Possible Side Effects of Care Potassium Citrate Mixture?

 

Like all medicines, Care Potassium Citrate Mixture can cause side effects, although not everyone will experience them. Most side effects are mild and related to the gastrointestinal tract.

Common side effects:

  • Nausea
  • Vomiting
  • Stomach discomfort or bloating
  • Diarrhoea

Less common side effects:

  • Hyperkalaemia (raised blood potassium levels) — particularly with prolonged use or in those with kidney problems. Symptoms include muscle weakness, irregular heartbeat, and tingling.
  • Alkalosis (excessively alkaline blood) — rare but possible with overuse.

If you experience any signs of hyperkalaemia — such as muscle weakness, numbness, or an irregular heartbeat — stop taking the mixture and seek medical attention immediately. Do not use this product for longer than 48 hours without speaking to a healthcare professional.

 

How Should You Store Care Potassium Citrate Mixture?

 

Correct storage helps maintain the quality and safety of this medicine. Follow these guidelines:

  • Store below 25°C in a cool, dry place.
  • Keep away from direct sunlight and sources of heat.
  • Keep the bottle tightly closed after each use.
  • Store out of the reach and sight of children.
  • Do not use after the expiry date printed on the bottle label.
  • Do not dispose of medicines via wastewater or household waste — return unused medicine to your pharmacy.

If you are managing multiple health conditions and need to keep a range of OTC products at home, our first aid collection is a good place to start building a well-stocked medicine cabinet.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Care Potassium Citrate Mixture online in the UK?

You can buy Care Potassium Citrate Mixture 200ml directly from Cured Pharmacy, a GPhC-registered online pharmacy, for just £3.99. It is available without a prescription as an over-the-counter medicine. Browse our full cystitis and bladder infection range for more options.

How does potassium citrate mixture work in the body?

Potassium citrate is absorbed from the gut into the bloodstream and then excreted by the kidneys into the urine. This raises the urinary pH, making urine less acidic and reducing the burning irritation to the bladder and urethra. It treats the symptoms of cystitis rather than the bacterial infection itself.

How do I use Care Potassium Citrate Mixture step by step?

Measure 10ml of the mixture using the measuring cup provided, then dilute it in a full glass of water. Drink it slowly, ideally with or after food, and repeat up to three times daily. Do not use for more than 48 hours without seeking advice from a pharmacist or GP.

What is the correct dose of Care Potassium Citrate Mixture for adults?

The standard adult dose is 10ml diluted in water, taken three times daily. Always follow the instructions in the patient information leaflet and do not exceed the recommended dose. If symptoms persist beyond 48 hours, consult a healthcare professional.

When is the best time to take potassium citrate mixture?

Take each dose with or shortly after a meal to reduce the likelihood of stomach upset. Spacing your three daily doses evenly throughout the day — for example morning, afternoon, and evening — helps maintain a more consistently alkaline urinary environment. Drink plenty of water throughout the day alongside treatment.

What are the side effects of Care Potassium Citrate Mixture?

Common side effects include nausea, vomiting, stomach discomfort, and diarrhoea. Less commonly, prolonged use can raise potassium levels in the blood (hyperkalaemia), which may cause muscle weakness or an irregular heartbeat. Stop use and seek medical advice immediately if you experience these more serious symptoms.

How do I manage side effects of potassium citrate mixture?

Taking the mixture with food and diluting it well in a full glass of water can help reduce gastrointestinal side effects such as nausea. If stomach discomfort is significant, speak to your pharmacist before continuing. Never take more than the recommended dose in an attempt to speed up relief.

Who should not use Care Potassium Citrate Mixture?

This product is not suitable for people with kidney disease, heart failure, or high blood potassium levels. It should also be avoided by those taking potassium-sparing diuretics, ACE inhibitors, or ARBs. Pregnant or breastfeeding women and children under 6 should seek medical advice before use.

What happens if I miss a dose of potassium citrate mixture?

If you miss a dose, take it as soon as you remember — unless it is nearly time for your next scheduled dose, in which case skip the missed one. Never take a double dose to make up for a missed one. Continue with your regular dosing schedule as normal.

How long can you use Care Potassium Citrate Mixture for?

Care Potassium Citrate Mixture should not be used for more than 48 hours without seeking medical advice. If your symptoms have not improved within this time, or if they worsen at any point, you should consult a GP as you may need antibiotic treatment. Long-term use without supervision carries a risk of raised blood potassium levels.

What are alternatives to potassium citrate mixture for cystitis?

Sodium citrate sachets — such as Cymalon or Cystopurin — work in a similar way by alkalising the urine and are another popular OTC option. If you prefer a sodium-free alternative, potassium citrate mixture may be more suitable. For persistent or recurrent cystitis, a GP may prescribe antibiotics such as trimethoprim or nitrofurantoin.

Can I take potassium citrate mixture while pregnant?

You should speak to your GP or midwife before using Care Potassium Citrate Mixture during pregnancy. UTIs during pregnancy do require prompt treatment, but the choice of medicine needs to be guided by a healthcare professional to ensure it is safe for both you and your baby. Do not self-treat without seeking advice first.

Can men use Care Potassium Citrate Mixture for cystitis?

Men can technically use potassium citrate mixture for symptomatic relief, but cystitis is much less common in men and may indicate an underlying condition such as a prostate problem. Men experiencing cystitis symptoms should consult a GP rather than self-treating, as further investigation is usually recommended. Women's health products like this are primarily designed and marketed for female use.

Does potassium citrate mixture actually cure cystitis?

No — potassium citrate mixture relieves the symptoms of cystitis, such as burning and stinging on urination, but it does not kill the bacteria causing the infection. Mild cases of cystitis sometimes resolve on their own, but if symptoms persist beyond 48 hours, you will likely need antibiotic treatment from a GP. Think of it as a comfort measure rather than a cure.

What are the latest studies on potassium citrate for cystitis?

Potassium citrate has been used as a urinary alkalinising agent for many years and remains a recognised OTC option for symptomatic cystitis relief in UK clinical practice. Current NHS guidance acknowledges its role in symptom management for mild, uncomplicated UTIs. Research continues to focus on antibiotic stewardship, with OTC alkalinising agents playing a role in reducing unnecessary antibiotic prescribing for mild cases. You can find more information about women's health treatments on our website.

How Should You Use Care Potassium Citrate Mixture?

Care Potassium Citrate Mixture is taken orally, diluted in water. It is important to measure each dose carefully and to drink it with a full glass of water to help dilute the urine and support the alkalising effect. Taking it with or after food can help reduce the chance of stomach discomfort.

Follow these steps each time you take a dose:

What Is the Correct Dose of Care Potassium Citrate Mixture?

The correct dose depends on your age. Adults should take 10ml three times daily, always diluted in water. Children under 6 years of age should not use this product. Children aged 6 to 18 should only use it under the direction of a doctor.

When Is the Best Time to Use Care Potassium Citrate Mixture?

Take each dose with or shortly after a meal to minimise the risk of nausea or stomach upset. Spacing your three daily doses evenly — for example at breakfast, lunchtime, and in the evening — helps maintain a more consistently alkaline urinary environment throughout the day. Starting treatment as soon as cystitis symptoms appear tends to give the best results.

Drinking plenty of fluids between doses is also important. The NHS recommends staying well hydrated during a urinary tract infection to help flush bacteria from the bladder and support recovery.

How Long Can You Use Care Potassium Citrate Mixture For?

This product is intended for short-term use only. Do not use Care Potassium Citrate Mixture for more than 48 hours without seeking advice from a pharmacist or GP. If your symptoms have not improved within 48 hours, or if they worsen at any point — particularly if you develop a fever, back pain, or blood in your urine — stop use and consult a healthcare professional immediately, as these may be signs of a kidney infection requiring antibiotic treatment.

Prolonged use without medical supervision carries a risk of raised blood potassium levels (hyperkalaemia), which can have serious effects on heart and muscle function. Always use the lowest effective dose for the shortest time necessary.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

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What Are the Most Common Side Effects of Care Potassium Citrate Mixture?

Most people who use Care Potassium Citrate Mixture tolerate it well, particularly when taken as directed with food and plenty of water. However, gastrointestinal side effects are the most frequently reported. These are generally mild and tend to resolve on their own.

  • Nausea
  • Vomiting
  • Stomach discomfort or cramping
  • Bloating
  • Diarrhoea

What Are the Less Common Side Effects of Care Potassium Citrate Mixture?

Less commonly, some people may experience side effects related to changes in the body's electrolyte balance. These are more likely to occur if the product is used for longer than recommended or in people with pre-existing kidney or heart conditions.

  • Hyperkalaemia (raised blood potassium levels) — symptoms include muscle weakness, fatigue, numbness or tingling, and an irregular heartbeat.
  • Metabolic alkalosis — an excessively alkaline state in the blood, which can cause muscle twitching, confusion, or hand tremors in rare cases.
  • Mild skin rash or allergic reaction — rare.

What Are the Serious Side Effects of Care Potassium Citrate Mixture?

Serious side effects are uncommon when the product is used correctly and for no longer than 48 hours. However, hyperkalaemia is the most clinically significant risk associated with potassium citrate. If blood potassium levels rise too high, it can affect the heart's electrical activity and lead to potentially dangerous arrhythmias. This risk is highest in people with kidney disease, those taking potassium-sparing diuretics, or those who use the product for extended periods.

Seek emergency medical attention if you experience chest pain, a very slow or irregular heartbeat, severe muscle weakness, or difficulty breathing after taking this product.

What Should You Do If You Experience Side Effects?

If you experience mild gastrointestinal side effects such as nausea, try taking the mixture with food and ensuring it is well diluted in a full glass of water. If side effects are persistent or troublesome, stop using the product and speak to your pharmacist. For any signs of a serious reaction — particularly symptoms of hyperkalaemia such as muscle weakness, numbness, or an irregular heartbeat — stop use immediately and seek urgent medical attention.

You should also stop using Care Potassium Citrate Mixture and contact your GP if your cystitis symptoms worsen or do not improve within 48 hours, as you may need antibiotic treatment.

Can Care Potassium Citrate Mixture Interact With Other Medicines?

Yes. Potassium citrate can interact with several medicines, potentially raising blood potassium levels to dangerous concentrations. Always tell your pharmacist about all medicines you are currently taking before using this product. The most important interactions include:

  • Potassium-sparing diuretics (e.g. spironolactone, amiloride, triamterene) — combined use significantly increases the risk of hyperkalaemia.
  • ACE inhibitors (e.g. ramipril, lisinopril) — these also raise potassium levels and should not be combined without medical supervision.
  • Angiotensin receptor blockers (ARBs, e.g. losartan, candesartan) — similar risk to ACE inhibitors.
  • NSAIDs (e.g. ibuprofen, naproxen) — may reduce kidney function and increase potassium retention.
  • Other potassium supplements — additive effect on blood potassium levels.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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