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In short What it costs without insurance The generic is already here If you have Medicare If you have private insurance If you have no coverage Common questions SourcesA generic for Januvia (sitagliptin) is already here: FDA-approved, on the market since January 2026 and sold from about $41 for 30 tablets at Cost Plus Drugs to between $123 and $271 elsewhere, depending on strength, while Merck sells brand Januvia direct to eligible cash-paying patients for $84.57 for a 30-day supply. Medicare's negotiated maximum fair price of $113 took effect January 1, 2026, eligible privately insured patients may pay as little as $5 per prescription with Merck's coupon, and the Merck Patient Assistance Program provides free Januvia to eligible patients. What you pay depends on your coverage, pharmacy and eligibility.
What it costs without insurance
Januvia (sitagliptin) is used for type 2 diabetes and is taken once a day, so 30 tablets make a typical one-month supply. Prices have changed a lot recently: CMS recorded a $527 average 30-day price in 2023, and Merck now sells brand Januvia directly to eligible cash-paying patients for $84.57 for a 30-day supply through the Merck Cash-Pay Gateway (filled by EVERSANA Pharmacy), which Merck describes as approximately 70% off the current list price. Outside those channels, pharmacies set their own cash prices, which vary by strength, quantity and ZIP code, so comparing two or three pharmacies before each refill can be real money. A generic is also available and is usually the cheapest route; the next section has numbers.
The generic is already here
Generic sitagliptin is FDA-approved and has been on the market since January 14, 2026, when Sandoz began selling it, with more manufacturers following - including Apotex and Teva on May 28, 2026 - in all three strengths (25 mg, 50 mg and 100 mg), according to Drugs.com - and it is on pharmacy shelves. When we checked on October 29, 2026, Mark Cuban Cost Plus Drug Company had two generic versions in stock: one listed at $40.89 for 30 tablets ($112.67 for 90) and another at $46.39 for 30 tablets ($129.17 for 90), both including its $5 pharmacy fee and before shipping, while Drugs.com listed generic sitagliptin from about $123 for 30 tablets in the 25 mg and 100 mg strengths and from about $271 for 30 tablets in the 50 mg strength. Prices vary widely by pharmacy, so ask a licensed US pharmacist which generic they stock and what it costs. Be cautious with online sellers: Drugs.com warns that fraudulent online pharmacies may sell illegal counterfeit "generic Januvia" - buy only from reputable, licensed pharmacies.
If you have Medicare
Two 2026 changes matter here. First, Januvia was in the first group of drugs with a Medicare negotiated price: CMS set a negotiated maximum fair price of $113 per 30-day supply, 79% below the $527 reference price, effective January 1, 2026, and CMS counts about 843,000 Part D enrollees who used Januvia in 2023. That price is not a guaranteed patient co-pay; your Part D plan determines what you owe. Second, Part D now caps your total out-of-pocket drug spending at $2,100 for the year across all covered Part D drugs, excluding premiums. Our guides to the 2026 Part D changes and Medicare Savings Programs and Extra Help walk through both. One caution: the Merck Cash-Pay Gateway and the $5 coupon are not available to Medicare or other government-program patients.
If you have private insurance
Merck's Januvia savings coupon lets eligible privately insured patients pay as little as $5 per prescription, with maximum savings of $150 per prescription (up to a 90-day supply per fill), redeemable once every 30 days, according to the published terms we checked on October 29, 2026. The coupon is for private insurance only: it is not valid for uninsured patients or anyone covered by Medicare, Medicaid, TRICARE or other government programs, and it is limited to US and Puerto Rico residents aged 18 and over. The offer cannot be combined with other coupons or savings cards, other restrictions apply, and Merck can change or end the offer, so confirm the current terms before counting on the price. If your plan does not cover Januvia, the cash routes in the next section may cost less than a full-price copay.
If you have no coverage
If you have no prescription coverage, you have several routes. Start with the generic: comparing pharmacies can mean the difference between roughly $41 and roughly $123 to $271, depending on strength, for the same 30 tablets, based on the Cost Plus Drugs and Drugs.com listings we checked on October 29, 2026. For the brand, the Merck Cash-Pay Gateway sells Januvia for $84.57 for a 30-day supply to eligible cash-paying patients, with home delivery through EVERSANA Pharmacy; it is not available to residents of Massachusetts or California for products that have a generic, and government program patients are excluded. The government's TrumpRx site also lists Januvia direct-pay pricing at 74% off and routes orders through the same Merck gateway. If cost is still out of reach, the Merck Patient Assistance Program provides free Januvia to eligible patients; income and coverage criteria apply, an application is required, and approval is not automatic. Do not stop or ration diabetes medication on your own. If cost may make you skip doses, contact your prescriber or pharmacist before you run out. Our guides to affording medication and patient assistance programs list more routes.
Common questions
Is there a generic version of Januvia?
Yes. Generic sitagliptin from multiple manufacturers has been FDA-approved and on the market since January 14, 2026 in all three strengths, according to Drugs.com, and generics are stocked by pharmacies such as Mark Cuban Cost Plus Drug Company, which listed a 30-tablet supply at about $41 including its pharmacy fee, before shipping, when we checked on October 29, 2026.
How much is Januvia per month without insurance?
Merck sells brand Januvia directly to eligible cash-paying patients for $84.57 for a 30-day supply through the Merck Cash-Pay Gateway, which Merck describes as approximately 70% off the current list price. Generic sitagliptin listings ranged from about $41 at Cost Plus Drugs to between $123 and $271, depending on strength, at the pharmacies Drugs.com aggregates, checked October 29, 2026. CMS recorded a $527 average 30-day price in 2023.
Can I get Januvia for free?
The Merck Patient Assistance Program provides free Merck medicines, including Januvia, to eligible patients. Income and coverage criteria apply, an application is required (online, by mail, or through 800-727-5400), and approval is not automatic. The Januvia savings coupon is only for privately insured patients, not the uninsured.
Can Pymander help with Januvia costs?
Pymander can explain your coverage options, assistance programs and questions to ask your doctor or pharmacist. It is not a pharmacy and does not sell or fill medication.