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Potassium citrate

Used for: Prevention and treatment of kidney stones
Chinese name:

What is Potassium Citrate for?

Potassium Citrate belongs to a class of medications called urinary alkalizing agents. It works by making urine more alkaline such that it can dissolve kidney stones. It is used to prevent and treat the formation of calcium and uric acid stones in the urinary tract when the urine is too acidic. This helps relieve pain and difficulty when urinating.

How to use it?

Potassium Citrate is available as a tablet. It should be taken with food.


Mild to moderate hypocitraturia (low urinary citrate)
Initially 10 milliequivalents (mEq) three times daily. Adjust dosage until the target urinary pH of 6-7 is reached. Maximum dosage is 100 mEq daily.


Severe hypocitraturia
Initially 20 mEq three times daily or 15 mEq four times daily. Adjust dosage until the target urinary pH of 6-7 is reached. Maximum dosage is 100 mEq daily.

What are the side effects of Potassium Citrate?

Common side effects of Potassium Citrate include stomach discomfort, diarrhoea, nausea and vomiting.

Who should not take Potassium Citrate?

  • People who are allergic to any component of the formulation.
  • Patients with hyperkalemia (high potassium level in blood)

Pharmacist Tips:

  • To get well sooner, limit your salt intake and drink plenty of water. Aim for 8 glasses of water each day.
  • Avoid any supplements that contain potassium and potassium-rich food while taking this medication.
  • Continue taking Potassium Citrate even when you feel well.

Common dosing schedule:
Take Potassium Citrate with food or immediately after a meal. Try to take it at the same time each day.


This schedule is for reference only, adjustments may be made according to individual needs.


Some common medications Potassium Citrate may interact with:

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Potassium Citrate in Hong Kong?

In Hong Kong, Potassium Citrate is an over-the-counter medicine and can be purchased without a prescription from any retail outlet in Hong Kong. This includes grocery stores, convenience stores, medicine shops, and pharmacies. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.


For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at https://www.drugoffice.gov.hk

Need more information?

For detailed information about the use of Potassium citrate in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.

Brands in Hong Kong
Available dosage
  • 1080mg (Tablets)
Drug class
Genitourinary Tract Agents
Sub class
Urinary Alkalinizing Agents
Other drugs in same class