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CitraTabs — Extended Release Citrate Tablets

4.8 · 200+ reviews on the web
Rated 4.8 out of 5

The tablet-form LithoLyte. Clinical-strength kidney health — without the pharmacy.

120 extended-release potassium/magnesium citrate tablets. Wax-matrix technology keeps citrate working all day. Recommended starting dose: two tablets, twice a day.

Avg $29.99 /mo $39.99 SAVE 25%
Three bottles ($89.97) every 90 days. Skip or cancel anytime.
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Doctor-formulated
As trusted by urologists since 2018
Cleveland ClinicMayo ClinicUCSF HealthJohns Hopkins
Works for hours
Wax-matrix extended release keeps urinary citrate elevated throughout the day.
7.5 mEq per dose
Clinical-strength potassium + magnesium citrate. Professional-level without the prescription.
Gentle on the stomach
Slow release means less GI upset than immediate-release citrate.
Kidney-first formula
Raises urine pH. Binds calcium. Reduces crystal formation.
How it works

Increase your citrate — quietly, reliably, every day.

Clinical research shows citrate can lower the risk of calcium stone crystal by more than 80%.*

Unlike immediate-release citrate, CitraTabs uses a wax-matrix to release the dose over hours — so your urine stays protected between pills.

Shop CitraTabs
01
Take two tablets, twice daily
Four tablets total per day — morning and evening, with a full glass of water. Adjust with your provider.
02
Citrate goes to work
The wax-matrix releases citrate gradually into your bloodstream, then into your urine over several hours.
03
Crystals lose their grip
Citrate binds calcium in the urine and raises pH — two conditions proven to reduce new crystal formation.
Compare

Professional-strength citrate, without the hassle.

CitraTabs was built to close the gap between generic supplements and the Rx-only formulas your urologist keeps recommending.

CompareCitraTabs
This product
Rx citrateGeneric supplement
Citrate strength● 7.5 mEq per tablet5–10 mEq per tabletVaries widely
Release profile● Extended (wax-matrix)Extended (usually)Immediate
Prescription required● NoYesNo
Typical 30-day cost● $29.99 (subscribe)$80–$150 with insurance$15–$40
Doctor-formulated● Yes — urologist-foundedYesRarely
FSA / HSA eligible● YesYesSometimes

* CitraTabs is a dietary supplement, not a prescription medication. Talk to your physician about what is right for your care plan.

The science

Citrate Binding Technology.

Citrate binds calcium in the urine and prevents calcium crystals from forming.

Low urinary citrate is the single most common — and most treatable — cause of recurrent calcium stones. CitraTabs raises that citrate gently, steadily, on a schedule you can actually keep.

>80%
reduction in crystal formation*
7.5 mEq
potassium + magnesium citrate
4 / day
starting dose (two tabs, twice daily)
How to take it

A routine that fits a real life.

Two tablets in the morning, two more before bed. That's it. Each bottle is a 30-day supply at the recommended starting dose. Your urologist may adjust up or down based on your labs.

Morning
Two tablets with breakfast and a full glass of water.
Evening
Two tablets before bed. Keeps urinary citrate protective through the night.
Hydration
Aim for 2–3 L of fluid a day. Pair CitraTabs with LithoLyte powder for full coverage.
CitraTabs Facts
CitraTabs
Per serving
15 mEq
Serving size2 tablets
Tablets per bottle120
Potassium (from potassium citrate)195 mg (4%)
Magnesium (from magnesium citrate)30 mg 7%)
Total alkali citrate15 mEq
Other ingredientsWax matrix base
Made in a GMP-certified U.S. facility. Third-party tested.
Backed by professionals

Trusted by thousands of patients — and their urologists.

★★★★★4.8 out of 5· 200+ verified web reviews
★★★★★
"My urologist suggested this when I was passing them every few months."
Between the extra water and the tablets, I haven't had one in five years. Good enough for me.
Ricky D., 62
LithoLyte.com customer · Verified
5 years pain-free
★★★★☆
"Started these after passing two in the same month."
Easy to work into the day — I keep a bottle on my desk and one by the toothbrush. No problems since.
Brandon W., 48
Amazon customer · Verified
2 years pain-free
★★★★★
"My urologist recommended this over a year ago after a staghorn had to come out surgically."
Easy to take, no taste, no issues, and more importantly — no new ones.
David M., 57
LithoLyte.com customer · Verified
After major surgery
★★★★★
"After my first kidney stone at 52 I was terrified of another one."
CitraTabs plus hydration has given me my confidence back. Two years and counting.
Susan T., 54
LithoLyte.com customer · Verified
First-timer
Dr. Samuel Reed, MD
❝A note from our founder

"I built CitraTabs for the patients I was sending away — the ones who needed clinical-grade citrate but couldn't get past the prescription, the cost, or the taste. This is the formula I'd put in my own cabinet."

Ryan Holland, MD
Board-Certified Urologist · Founder of LithoLyte Health
Questions

You asked. We answered.

Still have a question? Our patient-care team — staffed by professionals, will reach out within one business day.

Contact support →
No. CitraTabs is a dietary supplement, not a prescription medication. That said, if you have a history of kidney stones, we recommend looping in your urologist so they can tailor the dose to your 24-hour urine results.
Same mission, different format. The powder (LithoLyte flagship) is a zero-taste stick you pour into water, delivering 10 mEq per serving. CitraTabs is a 7.5 mEq wax-matrix tablet for people who prefer a pill or already drink enough water. Many of our customers use both.
It is a slow-release tablet format: the citrate is embedded in a food-grade wax that breaks down gradually in the gut over several hours, rather than dumping all at once. This is the same approach prescription citrate uses, and it means steadier urinary citrate and less GI upset.
Citrate can interact with potassium-sparing diuretics, ACE inhibitors, and a few other medications. Share the label with your doctor before starting, especially if you are on blood pressure or heart medications.
Urinary citrate rises within hours of the first dose. Preventive benefit builds over weeks as your urine chemistry stabilizes. Your urologist can confirm the effect with a 24-hour urine test after ~4 weeks.
If CitraTabs is not right for you, send back any unopened bottles within 30 days for a full refund. We also make returns easy on subscriptions — skip, pause, or cancel with one click from your account.
Start today

Make kidney health the easiest part of your day.

$29.99/month, shipped every 90 days. Skip, adjust, or cancel from your phone.