Disodium hydrogen citrate and other citrate-based urinary alkalinizers make urine less acidic. Some products are used for short-term symptom relief in cystitis or for selected urinary-stone conditions, depending on the exact formulation and local medical guidance.
They are not antibiotics and do not kill the bacteria that cause a urinary tract infection (UTI). If a UTI needs antibiotic treatment, an alkalinizing product is not a substitute.
What Can a Urinary Alkalinizer Do?
By raising urine pH, citrate products may reduce burning or discomfort during urination in some people. Certain citrate preparations are also used under medical supervision for specific types of urinary stones.
Evidence for over-the-counter citrate products in uncomplicated cystitis is limited, so symptom relief should not be confused with curing an infection.
Do Not Use a Generic Internet Dose
Different citrate products contain different salts, strengths, and amounts of sodium or potassium. A dose that is correct for one product may be wrong for another. Follow the exact label, pharmacist instructions, or prescription for the product you have.
This is especially important for children. Do not use adult dosing tables from websites to calculate a child’s dose.
Who Needs Extra Caution?
Because some citrate products contain a substantial amount of sodium, they may be unsuitable for people with kidney disease, heart failure, high blood pressure, swelling/edema, or those on a sodium-restricted diet. Some formulations also have specific restrictions in diabetes or pregnancy.
Citrate products can also change the absorption or elimination of other medicines. Tell your pharmacist or doctor what medicines you take before using them regularly.
When UTI Symptoms Need Medical Care
Seek medical advice promptly for fever, chills, back or side pain, vomiting, pregnancy, blood in the urine, recurrent infections, symptoms in a child or man, or symptoms that are worsening or not improving within a short period. These can require proper testing and treatment.
Bottom Line
Disodium hydrogen citrate may help make urine less acidic and may ease urinary burning in some situations, but it does not treat the underlying bacterial cause of a UTI. Use only the instructions for the exact product you have, and avoid self-prescribing doses from generic online tables.
Reliable Sources
- Gloucestershire Hospitals NHS: Urinary Tract Infection
- Electronic Medicines Compendium: Sodium Citrate Cystitis Relief
Last reviewed for medical accuracy: September 2026.