Metformin combination drugs — Many Not Covered by Any Part D Plan in 2026

What’s Happening

Early HeyMOE results show that no stand-alone Medicare Part D drug plans will cover many metformin combination drugs in 2026.

That means if you take one of the uncovered metformin combination drugs, your Part D plan will not pay anything toward the cost of that medication next year — and since it’s not covered, your spending will not count toward your Part D out-of-pocket limit.

In other words, you’d be responsible for the full retail cost of Metformin Hydrochloride 750mg.

What This Means for You

If you currently take metformin combination drugs, you’ll have two main options for 2026:

1. Pay Out of Pocket

The cash price of many metformin combination drugs average $200-$2,000 per refill — clearly not realistic for most people.

2. Switch to a separate pills of metformin and the second drug

Several Metformin Hydrochloride dosages are included on 2026 Part D formularies, such as:

• Metformin Hydrochloride 500mg

• Metformin Hydrochloride 1,000mg

• dapagliflozin 5mg

• dapagliflozin 10mg

No plan covers saxagliptin, sitagliptin or alogliptin. However, you can get GoodRx coupons for saxagliptin, sitagliptin. and alogliptin that takes pricing down to $50-$300 per refill.

Talk to your prescribing doctor before December 7 to see whether switching metform and saxagliptin, sitagliptin, dapagliflozin, and alogliptin as separate pills makes sense for you.

What HeyMOE Is Doing

HeyMOE automatically checks your medication list to determine whether a drug is covered under any Part D plan and, if not, your account is flagged for manual review.

During the manual review, we will let you know if other Metformin options that are covered. Or, if switching to a metformin and the second drug by themselves – not combined – can save you money.