Affordability Check
How to afford Lithostat
Generic name: acetohydroxamic acid
Pick how you're covered. We'll show you the cheapest legitimate way to get Lithostat — your insurance copay, manufacturer savings, charity grants, or cash price. It takes 30 seconds and we never ask for your personal information.
Pick an option above to see your specific path.
Different insurance means different laws and different savings. For example, Medicare patients cannot use manufacturer copay cards (federal law) — but the manufacturer almost always has a Patient Assistance Program that gives the drug free.
About Lithostat and its cost
What is this medication? Lithostat, which contains the active ingredient acetohydroxamic acid, is a prescription drug primarily used as an adjunctive therapy for patients with chronic urea-splitting urinary tract infections. It works by inhibiting the enzyme urease, which is produced by certain types of bacteria in the urinary tract. By blocking this enzyme, the medication prevents the breakdown of urea into ammonia, which helps maintain a more acidic environment in the urine and reduces the formation and growth of specific types of kidney stones known as struvite or infection stones.
This medication is typically prescribed when other treatments, such as antibiotics or surgical removal of stones, are not sufficient on their own or when stones continue to recur. It is important to note that Lithostat does not treat the underlying bacterial infection itself but rather addresses the chemical changes caused by the bacteria that lead to stone development. Patients taking this drug require close medical supervision because it can have significant side effects and must be used as part of a comprehensive treatment plan for chronic urinary conditions.
Lithostat is made by Mission Pharmacal. Like most brand-name drugs, it's priced at a high list price — but patients rarely pay that list price. The options above are the real paths most people use to get it affordably.
Common questions
What's the cheapest way to afford Lithostat?
It depends on your insurance. On Medicare, apply for the manufacturer's Patient Assistance Program (PAP) — it gives the drug free if you meet income requirements. With private insurance, the manufacturer copay card usually drops your copay to $0-$25. Uninsured patients should compare the PAP with Cost Plus Drugs cash price.
Can I use a copay card with Medicare for Lithostat?
No — federal law (the Anti-Kickback Statute) prohibits manufacturer copay cards on Medicare, Medicaid, TriCare, and VA prescriptions. But Mission Pharmacal has a separate Patient Assistance Program for Medicare beneficiaries. Check the options above.
Does my Medicare Part D plan cover Lithostat?
Part D coverage varies by plan. We query the CMS Prescription Drug Plan file to show you what percentage of plans cover it and at what tier. For your exact copay, pick "Medicare" above and check your plan's Summary of Benefits, or log in to Medicare.gov.
How long does a Patient Assistance Program take?
Most PAPs take 2-6 weeks from application to first fill. Ask the manufacturer about a "bridge supply" — many will ship 30 days free while your application is being reviewed so you don't go without the drug.
What if I have a high-deductible plan?
For generics, Cost Plus Drugs cash price is often cheaper than your deductible-phase copay. For brand names, the manufacturer copay card almost always wins. A GoodRx coupon can be a last resort for uncovered drugs, but it doesn't count toward your deductible.
Are there charity grants for Kidney Stones?
Charities like HealthWell Foundation, PAN Foundation, Good Days, and the National Organization for Rare Disorders provide copay help for specific conditions. Funds often run out mid-year — apply early. We list the specific grants for your condition in the options above.
More about Lithostat
Full Lithostat drug page
FDA label, prior authorization rules, full indications list
More options for Kidney Stones
Drugs, grants, and assistance for this condition
Guide to Patient Assistance Programs
How PAPs work, who qualifies, typical wait times
If your insurance denied coverage
5-level appeal playbook — Medicare has a 60% win rate at Level 3