Affordability Check
How to afford SAMSCA
Generic name: tolvaptan
Pick how you're covered. We'll show you the cheapest legitimate way to get SAMSCA — 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 SAMSCA and its cost
What is this medication? Samsca is a prescription medication primarily used to treat adults with low levels of sodium in the blood, a condition known as hyponatremia. It is specifically indicated for patients who have clinically significant hypervolemic or euvolemic hyponatremia, which are conditions where the body retains too much water relative to its sodium levels. This medication is often prescribed for individuals dealing with certain underlying health issues such as heart failure or the syndrome of inappropriate antidiuretic hormone secretion.
The drug works as a selective vasopressin V2-receptor antagonist, which means it helps the kidneys get rid of excess water through urine without losing too many electrolytes. This process helps to naturally raise the concentration of sodium in the bloodstream back to a healthier range. Because rapid changes in sodium levels can be dangerous, treatment with Samsca must be initiated or re-started in a hospital setting where medical professionals can closely monitor the patient blood chemistry and overall response to the therapy.
SAMSCA is made by Otsuka. 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 SAMSCA?
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 SAMSCA?
No — federal law (the Anti-Kickback Statute) prohibits manufacturer copay cards on Medicare, Medicaid, TriCare, and VA prescriptions. But Otsuka has a separate Patient Assistance Program for Medicare beneficiaries. Check the options above.
Does my Medicare Part D plan cover SAMSCA?
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 Hyponatremia?
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 SAMSCA
Full SAMSCA drug page
FDA label, prior authorization rules, full indications list
More options for Hyponatremia
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