Some prescription medicines and supplements can contribute to kidney stones. However, taking one does not mean you will develop a stone—or that stopping treatment is the right decision.
If you have a history of kidney stones, ask your doctor or pharmacist to review everything you take, including vitamins, antacids and herbal products.
Do not stop or change prescribed medication on your own. Its benefits may outweigh the stone risk, and your clinician may be able to adjust monitoring or prevention measures.
Affiliate disclosure: This article contains an affiliate link. We may earn a commission if you purchase through it.
Which Medicines Can Contribute to Kidney Stones?
Medicines can contribute in different ways. Some form crystals in urine; others change urine chemistry in ways that favour stone formation.
| Medicine | Connection with kidney stones |
|---|---|
| Topiramate | A recognised stone risk associated with changes in urine chemistry. |
| Acetazolamide and zonisamide | Can create urinary conditions that favour certain stones. |
| Triamterene | This particular diuretic can contribute to drug-containing stones. |
| Indinavir and some related HIV medicines | Certain drugs in this group can crystallise in urine. |
| Selected antibiotics | Some can cause urinary crystallisation under particular circumstances; this does not apply equally to all antibiotics. |
This is not a complete list. Ask about your exact medicine rather than assuming every drug used for the same condition carries the same risk.
Topiramate deserves a specific discussion
Topiramate is used for epilepsy and migraine prevention. If you take it and develop stone symptoms, tell the prescribing clinician.
Do not stop topiramate suddenly. Your clinician can advise whether treatment should continue, change or be reduced gradually.
Are all water tablets a problem?
No. Diuretics differ.
Thiazide medicines, including hydrochlorothiazide, lower urinary calcium and may be considered for selected people with recurrent calcium stones. They should not be labelled as a group that raises urinary calcium.
Do not substitute one diuretic for another yourself.
Can Supplements Increase Stone Risk?
Calcium supplements
Calcium supplements deserve a dose review, especially if you also take a multivitamin or calcium-containing antacid. Evidence about supplements and stones is mixed; your total intake and medical circumstances matter.
Do not automatically remove calcium-rich foods. Calcium eaten with a meal can bind oxalate in the digestive tract, reducing its absorption.
If you need a supplement for bone health, ask about the appropriate amount and timing. Calcium carbonate is generally taken with food; calcium citrate is less dependent on food for absorption.
Read more about calcium and kidney stones.
Vitamin C supplements
High vitamin C intake can increase urinary oxalate, although research on its relationship with stone formation is not completely consistent.
Tell your clinician if you regularly take high-dose vitamin C, particularly if you have calcium oxalate stones or elevated urinary oxalate. Include powders and combination products when checking your intake.
This concern does not mean you should avoid ordinary servings of fruit and vegetables.
Vitamin D supplements
Vitamin D toxicity can cause high blood calcium and increased urinary calcium, potentially contributing to stones.
That is different from taking an appropriate dose to treat a diagnosed deficiency. Do not discontinue prescribed vitamin D simply because you have had a stone.
Ask whether your dose, other supplements and blood-test results need review.
For related information, see supplements and kidney stone prevention.
Prepare for a Medication Review
Bring a complete list—or the actual containers—to your appointment.
Include:
- Prescription medicines, doses and when you started them.
- Over-the-counter medicines, including antacids.
- Vitamins, minerals and herbal products.
- Previous stone-analysis results, if available.
- Any recent changes in symptoms or treatment.
Useful questions include:
- Does any product I take have a recognised connection with stones?
- Am I getting the same vitamin or mineral from several products?
- Would monitoring help me continue an important medicine safely?
- Is an alternative appropriate for my condition?
- What fluid advice applies to me?
A medication review is particularly useful when several clinicians prescribe different treatments. It gives everyone an opportunity to work from the same list.
What Tests Might Help?
Depending on your history, your clinician may recommend stone analysis, blood tests or a 24-hour urine collection.
These can help identify a prevention plan suited to your stone type. Developing a stone while taking a medicine does not, by itself, prove the medicine caused it.
For repeated episodes, read our guide to recurrent kidney stones.
When to Get Urgent Medical Help
Seek urgent medical assessment if suspected kidney stone symptoms occur with:
- Fever or chills.
- An inability to urinate, or only passing a very small amount.
- Severe or uncontrolled pain.
- Persistent vomiting.
Do not wait for a routine medication-review appointment when these symptoms occur.
Frequently Asked Questions
Should I stop a medicine if kidney stones appear in its side effects?
No. Contact the prescriber to discuss your symptoms and treatment options. A listed side effect does not establish that the medicine caused your stone.
Should I stop calcium because I also have osteoporosis?
Do not change your bone-health treatment without advice. Ask your clinician to review dietary calcium, supplement doses and your stone history together.
Does turning 60 make these medicines unsafe?
There is no universal age cutoff. The decision depends on the particular medicine, your health, other treatments and stone history.
Can an information report replace a medication review?
No. A report cannot assess your prescriptions, kidney function or individual treatment needs.
Optional paid reading: Kidney Stone Removal Report. This is an affiliate link to an information product, not a substitute for medical assessment or prescribed treatment.
References
- European Association of Urology: Metabolic Evaluation and Recurrence Prevention
- NHS: Topiramate
- NIH: Calcium
- NIH: Vitamin C
- NIH: Vitamin D
- NIDDK: Symptoms and Causes of Kidney Stones
This article provides general education and does not replace personalised medical advice.