Januvia cost in 2026: Medicare, TrumpRx and the pharmacy
Medicare pays $113 for 30 days of Januvia in 2026; TrumpRx lists 30 tablets of 25 or 50 mg at $84.57.
Januvia (sitagliptin) received the deepest cut of the first Medicare negotiation round: $113 for 30 days from January 2026, against a 2023 list price of $527, and $116.06 in 2027 after inflation adjustment. Under the standard Part D benefit that makes a year of Januvia about $800. For cash buyers, Merck’s TrumpRx listing covers only the 25 and 50 mg tablets, at $84.57 for 30, against a list price of $330 on the same page. The 100 mg tablet, the usual adult dose, is not on TrumpRx; pharmacies pay about $317 for 30 of them according to the NADAC survey of October 14, 2026, so its counter price starts there. Januvia alone never comes close to the yearly Part D cap, which makes the negotiated price, rather than the cap, the figure that sets what a Medicare enrollee pays.
The whole of 2026, by way of paying
- Paying cash (self-pay)no published price
- Medicare Part D, covered use$800
- Medicaid, at a $4.00 copay$48
You would pay, Januvia 100 mg
$67 / month
$800 in 2026
Standard 2026 Part D benefit: deductible, then 25% of the cost, below the yearly cap.
Same dose, other ways to pay (per month)
- List price (wholesale acquisition cost)not published
- What pharmacies pay (NADAC)$317
- Medicare negotiated price, 2026$113
- Medicare Part D, your share (month avg., 2026)$67
TrumpRx and makers read on October 16, 2026 · NADAC file of October 14, 2026. Estimate only, not medical advice. How it is calculated
Prices read by Radif Partners · Editorial policy · Method and data
The three tablets and their routes
| Tablet | TrumpRx, 30 tablets | List price | Pharmacy cost (NADAC) | Medicare 2026 |
|---|---|---|---|---|
| 25 mg | $84.57 | $330 | $316 | $113 |
| 50 mg | $84.57 | $330 | $317 | $113 |
| 100 mg | not listed | – | $317 | $113 |
The lower strengths are prescribed mainly when kidney function is reduced, which is why a cash offer limited to 25 and 50 mg helps fewer people than its price suggests.
What a cut of 79 % means at the counter
CMS presents Januvia’s negotiated price as 79 % below its 2023 list price. For a Part D enrollee paying 25% coinsurance after the deductible, the monthly share falls in proportion; for one paying a flat copay, the change shows up in the plan’s costs rather than at the counter. Januvia alone never approaches the $2,100 cap: twelve months at the negotiated price cost $1,356 in total.
Janumet in 2027
Sitagliptin with metformin, sold as Janumet, joins the negotiated list in 2027 at its own price; the negotiated prices page lists it with the other fourteen drugs of that round.