The right medicine to treat kidney stones depends on the stone's size, location, composition and whether it is causing pain, infection or urinary obstruction.

Some medicines relieve pain, while others may help selected ureteral stones pass or dissolve certain types of stones. Medicines can also reduce the risk of future stones in people with specific metabolic abnormalities.

However, no single tablet treats every type of kidney stone. Many calcium-based stones cannot be dissolved with ordinary medicines, and larger stones may require a procedure to break them apart or remove them.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides evaluation of kidney function and kidney-related conditions, including concerns associated with kidney stones. When a stone requires a procedure, assessment and treatment planning may involve coordination with a urologist.

Types of Medicines Used for Kidney Stones

Doctors may consider several medication categories depending on the clinical situation.

These medicines serve different purposes. A drug that relieves pain does not necessarily dissolve the stone, and a medicine that helps prevent future stones may not remove an existing one.

1. Medicines for Kidney Stone Pain Relief

Kidney stones can cause sudden, severe pain in the side or back that may spread toward the lower abdomen or groin.

Doctors commonly consider nonsteroidal anti-inflammatory drugs (NSAIDs) for renal colic when appropriate. Depending on the patient's health and other medicines, alternatives may be needed. Severe pain that does not respond to medication requires reassessment.

NSAIDs

NSAIDs are commonly used for acute kidney stone pain when there are no contraindications.

They are not suitable for everyone. They may be risky for people with chronic kidney disease, dehydration, reduced kidney function, certain stomach problems or particular cardiovascular conditions.

Do not self-medicate with painkillers if you have kidney disease or have been told that your kidney function is reduced.

Paracetamol

Paracetamol may be considered for pain relief in appropriate patients. The correct dose depends on individual factors, including liver health, other medicines and the total amount taken from all products.

Severe renal colic may require a different treatment plan, so persistent pain should not be managed by repeatedly increasing doses at home.

Stronger Prescription Pain Medicines

In selected cases, a doctor may prescribe a stronger analgesic if initial treatment is insufficient or unsuitable.

These medicines can cause side effects and require individualized assessment. They do not remove the underlying stone.

2. Medicine to Help a Kidney Stone Pass Naturally

Some stones located in the ureter—the tube connecting the kidney to the bladder—may pass without a procedure.

For selected patients, doctors may prescribe an alpha-blocker, such as tamsulosin, to help facilitate passage of certain ureteral stones.

The European Association of Urology's 2026 guidance identifies the greatest benefit of medical expulsive therapy in selected distal ureteral stones larger than 5 mm, particularly those in the 5–10 mm range. This treatment is not appropriate for every stone or every patient.

The decision depends on:

• Stone size and location

• Severity of pain

• Presence of urinary obstruction

• Kidney function

• Infection status

• Likelihood of spontaneous passage

• Other medical conditions

A stone that is causing infection, worsening kidney function or persistent uncontrolled pain may need active treatment rather than continued observation.

3. Can Medicines Dissolve Kidney Stones?

Some stones can be dissolved medically, but most common kidney stones cannot.

The possibility of dissolution depends on the stone's chemical composition.

Uric Acid Stones

Certain uric acid stones can dissolve when urine acidity is appropriately corrected.

Doctors may prescribe urine-alkalinizing medicines, such as potassium citrate or sodium bicarbonate, depending on the patient's condition and laboratory results.

Treatment requires monitoring because the urine pH must be adjusted carefully. Excessive alkalinization may encourage the formation of other stone types. Patients may need urine pH monitoring and follow-up imaging.

Calcium Oxalate Stones

Calcium oxalate stones are among the commonest kidney stones.

They generally cannot be dissolved simply by taking a tablet. Medicines may nevertheless be useful for preventing new stones in selected patients, depending on urine chemistry and other risk factors.

Calcium Phosphate Stones

Calcium phosphate stones also generally do not dissolve with ordinary oral medication. Treatment focuses on the existing stone when necessary and on correcting the factors that contribute to stone formation.

Infection-Related Stones

Some stones are associated with urinary infections. Treatment may involve antibiotics when infection is present, along with appropriate stone removal or other urological treatment.

Antibiotics alone may not eliminate a large infection-related stone.

4. Potassium Citrate for Kidney Stones

Potassium citrate is used in selected patients to alter urine chemistry and reduce the likelihood of certain stones forming again. It may also be used in medically supervised dissolution treatment for suitable uric acid stones.

However, potassium citrate is not appropriate for everyone.

People with impaired kidney function or elevated blood potassium may face serious risks. A doctor should assess kidney function, potassium levels, medications and the suspected stone type before prescribing it.

Do not begin potassium citrate simply because an ultrasound shows a kidney stone.

5. Allopurinol and Other Preventive Medicines

Allopurinol may be prescribed for selected patients with excessive uric acid production or excretion and certain recurrent stone patterns.

Other preventive medicines may be considered when testing identifies specific abnormalities, such as excessive urinary calcium or low urinary citrate.

The choice depends on blood tests, urine studies, stone analysis and medical history. Preventive treatment is not interchangeable between stone types.

6. Are Antibiotics Used to Treat Kidney Stones?

Antibiotics do not dissolve ordinary kidney stones.

They are used when a bacterial urinary infection is diagnosed or strongly suspected. The choice of antibiotic depends on factors such as the infection, culture results, allergies and kidney function.

A particularly dangerous situation occurs when a stone blocks urine drainage and an infection develops behind the blockage. This can cause a severe infection and requires urgent medical care. Treatment may involve immediate antibiotics and drainage with a ureteral stent or nephrostomy, with definitive stone treatment delayed until the infection is controlled.

Do not use leftover antibiotics or take them without medical advice.

When Are Tablets Not Enough to Treat Kidney Stones?

Medicines may be insufficient when a stone is too large to pass, repeatedly causes severe pain, blocks urine flow, contributes to infection or threatens kidney function.

Depending on the stone's characteristics, treatment may involve:

• Shock wave lithotripsy (SWL or ESWL): Uses external shock waves to break selected stones into smaller fragments.

• Ureteroscopy with laser lithotripsy: Uses a small instrument passed through the urinary tract to reach and fragment a stone.

• Retrograde intrarenal surgery (RIRS): Uses a flexible scope to treat stones inside the kidney.

• Percutaneous nephrolithotomy (PCNL): Removes larger or complex kidney stones through a small access tract in the back.

The most appropriate procedure depends on stone size, location, density, anatomy, infection status and the patient's overall health.

What Tests Help Determine the Right Kidney Stone Medicine?

Before selecting treatment, a doctor may recommend investigations to understand the stone and its effect on the urinary tract.

Imaging

Ultrasound or a CT scan may help establish the stone's size and location and identify possible obstruction.

Urine Tests

Urinalysis and, when indicated, urine culture can help identify blood, infection and other abnormalities.

Blood Tests

Depending on the situation, testing may include:

• Serum creatinine and eGFR

• Electrolytes, including potassium

• Calcium

• Uric acid

• Blood count when infection or another complication is suspected

Stone Analysis and Metabolic Evaluation

If a stone is passed or removed, laboratory analysis can identify its composition. People with recurrent or high-risk stones may benefit from additional metabolic testing, sometimes including a 24-hour urine collection. Results can help guide preventive medicines and dietary changes.

Can Kidney Stones Be Treated at Home Without Surgery?

Some small stones may pass naturally under medical supervision, but home treatment is not appropriate for every case.

If a clinician recommends observation, the plan may include suitable pain relief, follow-up and instructions about when to return for assessment.

Drinking enough fluid can help prevent future stones in many people, but forcing large amounts of water does not guarantee that an existing stone will pass. Excess fluid may be unsafe for people with kidney failure, heart failure or a prescribed fluid restriction.

Do not rely on home remedies or unverified stone-dissolving products instead of appropriate assessment.

How to Prevent Kidney Stones From Coming Back

The prevention plan should be tailored to the type of stone and the reason it formed.

Helpful measures may include:

• Maintain appropriate fluid intake according to medical advice.

• Reduce excessive dietary sodium.

• Follow a balanced diet suited to the stone type.

• Avoid unnecessary high-dose vitamin or mineral supplements.

• Take prescribed preventive medicines as directed.

• Complete recommended urine or blood testing.

• Attend follow-up appointments.

For many recurrent stone formers, clinicians aim for sufficient fluid intake to produce more than 2.5 litres of urine per day, where medically appropriate. That target is not suitable for everyone, especially people who need fluid restriction.

Warning Signs That Require Urgent Medical Attention

Seek urgent medical assessment if you have a suspected kidney stone with:

• Fever or chills

• Severe or persistent pain

• Repeated vomiting or inability to keep fluids down

• Very little or no urine

• Difficulty passing urine

• Marked weakness or confusion

• Rapidly worsening symptoms

A stone associated with infection and urinary obstruction is an emergency. Do not wait for tablets to work if these warning signs occur.

Kidney Stone Evaluation at Prabhakar Bhurke Clinic

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides individualized assessment for kidney-related concerns.

Depending on the clinical situation, evaluation may include:

• Reviewing kidney-function results

• Assessing creatinine and eGFR

• Reviewing urine test and imaging reports

• Evaluating complications affecting kidney function

• Reviewing medicines and other medical conditions

• Assessing risk factors for recurrent stones

• Coordinating with a urologist when stone removal or another procedure is indicated

• Providing kidney care and follow-up according to the diagnosis

The appropriate care plan depends on the patient's kidney function, stone characteristics and overall health. A nephrologist can help assess kidney-related risks, while a urologist generally manages procedures used to remove or fragment stones.

Frequently Asked Questions

Which medicine is best for kidney stones?

There is no single best medicine for every stone. Treatment may involve pain relief, selected medicines to facilitate passage, dissolution therapy for suitable uric acid stones or preventive medicines based on the cause.

Can a tablet dissolve kidney stones completely?

Certain uric acid stones can sometimes be dissolved with carefully monitored urine-alkalinizing treatment. Most calcium-based stones do not dissolve with ordinary tablets.

Which medicine helps a kidney stone pass through the ureter?

An alpha-blocker such as tamsulosin may be considered for selected ureteral stones, especially some distal stones larger than 5 mm. It should be prescribed only after clinical assessment.

Can I take painkillers for kidney stone pain?

Some painkillers can relieve renal colic, but suitability depends on kidney function, hydration, other health conditions and current medicines. Consult a healthcare professional before using them, particularly if you have kidney disease.

Are antibiotics necessary for kidney stones?

Not for every stone. Antibiotics are used when a bacterial infection is present or strongly suspected. Infection with an obstructing stone requires urgent medical management.

How do I know if my kidney stone needs surgery?

Imaging, stone size and location, symptoms, infection status, urinary obstruction and kidney function help determine whether observation, medication or a procedure is appropriate.

Can kidney stone medicine prevent future stones?

Yes. Certain medicines can reduce recurrence in selected patients, but the choice depends on stone composition, urine chemistry and other risk factors.

Conclusion

Choosing the right medicine to treat kidney stones begins with identifying the type of stone and understanding whether it is causing pain, obstruction or infection.

Pain-relief medicines can control symptoms, selected alpha-blockers may help some ureteral stones pass, and urine-alkalinizing treatment can dissolve certain uric acid stones. Other medicines may reduce the chance of recurrence when a specific risk factor is identified.

Larger stones, persistent obstruction, uncontrolled pain or infection may require a procedure rather than tablets alone. Early assessment helps reduce the risk of complications and supports an appropriate treatment plan.

For kidney-function evaluation and individualized kidney care, consult Dr. Sandip Prabhakar Bhurke at Prabhakar Bhurke Clinic.

Medical Disclaimer

This article is intended for general educational purposes only and is not a substitute for medical advice, diagnosis or treatment. The appropriate medicine for kidney stones depends on stone size, location, composition, kidney function, infection status and other health conditions. Do not start painkillers, antibiotics, potassium citrate, allopurinol, alpha-blockers or other medicines without professional guidance. Some medicines can cause serious side effects or be unsafe in people with impaired kidney function. Fever or chills with a suspected obstructing stone, very little or no urine, persistent vomiting, severe uncontrolled pain or rapidly worsening symptoms requires urgent medical attention. Consult Dr. Sandip Prabhakar Bhurke or another qualified healthcare professional for individualized assessment.