การใช้ยาสลายนิ่วในไต Potassium citrate

อัปเดตล่าสุด: 18 พฤษภาคม 2026

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The FAQ (Frequently ask question) from patients at Urology clinic; what about Potassium citrate therapy for kidney stone treatment or stone prevention for the post successful stone operation? In this point I have to answer that “Most of kidney stone cannot be treated or get rid of by just medication but it more likely just has a key role on reducing the recurrence rate.” I will tell you why.

Potassium citrate salts has 2 protective effects against kidney stone.

สรรพคุณ 2 ข้อของ Potassium citrate ในการป้องกันนิ่วในไต

1. Alkalinizes urine – Uric acid stone is the only stone type that thrives in acidic urine. Maintaining urine pH 6.5-7.0 with citrate therapy can dissolve uric acid stones. Thai data shows approximately 20.9% of stone patients have uric acid stones, so roughly 1 in 5 patients may benefit from oral citrate therapy alone.
2. Prevents calcium stone formation – Calcium stones account for up to 80% of kidney stones. Citrate binds to calcium ions in urine and inhibits crystallization. A 2015 large systematic review confirmed that citrate therapy significantly prevents stone growth and reduces recurrence rate.

Cons of citrate therapy include gastrointestinal side effects (stomach upset, nausea, bloating, diarrhea), need for strict 3-times-daily dosing compliance with regular urine pH self-monitoring, and no absolute guarantee of stone recurrence prevention due to the multifactorial nature of stone formation.

It’s better to discuss with your urologist whether your stone condition is worth for citrate therapy or not. You can visit my homepage ที่นี่!

คำถามที่พบบ่อย

Q1: Can potassium citrate dissolve kidney stones?

Potassium citrate can dissolve kidney stones only in a specific situation: uric acid stones. By alkalinizing the urine to a pH of 6.5-7.0, citrate therapy creates an environment where uric acid crystals dissolve over time. For the more common calcium-containing stones, which account for up to 80% of kidney stones, citrate therapy helps prevent new stone formation but cannot dissolve existing stones.

Q2: How does potassium citrate prevent kidney stones?

Potassium citrate works in two ways. First, it alkalinizes urine, which specifically targets and helps dissolve uric acid stones. Second, citrate acts as a natural inhibitor of calcium stone formation by binding to calcium ions in the urine and preventing them from crystallizing into stones. A large systematic review in 2015 confirmed that citrate therapy significantly reduces stone recurrence rates.

Q3: Who should take potassium citrate for kidney stones?

Potassium citrate is most beneficial for patients with uric acid kidney stones, those with low urinary citrate levels (hypocitraturia), and patients with calcium oxalate stones who have had prior stone surgery and want to reduce recurrence risk. Your urologist can determine whether citrate therapy is appropriate based on your stone type (ideally confirmed by stone analysis), urine studies, and overall stone history.

Q4: What are the side effects of potassium citrate therapy?

Common side effects of potassium citrate include gastrointestinal complaints such as stomach upset, nausea, bloating, and diarrhea. These are usually related to the dosing schedule, as optimal therapy requires taking the medication three times daily. Taking citrate with meals and adequate water can help reduce gastrointestinal discomfort. If side effects are severe, your doctor can adjust the formulation or dosage.

Q5: Can I buy potassium citrate over the counter for kidney stones?

While some citrate-containing supplements are available over the counter, self-medicating without medical guidance is not recommended. Effective citrate therapy requires knowing your stone type (confirmed by stone analysis), monitoring urine pH regularly, and maintaining appropriate dosing. Kidney stone formation is multifactorial and requires a comprehensive evaluation by a urologist to design the most effective prevention strategy for your individual situation.

If you have kidney stones and would like guidance on whether potassium citrate therapy is appropriate for you, Dr. Soarawee Weerasopone offers specialist consultations at Bangkok Hospital Headquarters. นัดหมายปรึกษาแพทย์.

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