S. 4323 · Where this bill is now
In committee
Introduced in the Senate, Apr 16, 2026
What this bill does
In plain words · AI-written from the official summaryRequires Medicare plans to cover generic drugs equally
Here's the gist: Medicare prescription drug plans use lists of which medicines they'll pay for, often organized by cost. This bill says those plans must include generic drugs and biosimilars—cheaper versions of brand-name medicines—on their lists. The plans can't make it harder to get generics than brand-name drugs, like by requiring extra approval steps for the generic version but not the brand-name one.
How it affects you
If you're a senior on Medicare taking prescription drugs, this could make generic medicines easier and more affordable to access. Your drug plan would have to treat generics just like brand-name drugs when it comes to approval requirements and cost-sharing tiers, so you'd have a fair shot at the lower-cost option.
Read the official summary (Introduced in Senate, Apr 16, 2026)
Ensuring Access to Lower-Cost Medicines for Seniors Act
This bill requires prescription drug plans under the Medicare prescription drug benefit to include generic drugs and biosimilars on their formularies.
Specifically, the bill requires plans that use formularies to include generic drugs and biosimilars on the formularies and without any requirements (e.g., prior authorization requirements) that are more restrictive as compared to those for brand-name drugs and biologics. Plans that use cost-sharing tiers must also have specific tiers for generic drugs and biosimilars, in accordance with certain limitations.
Written by AI (Claude) using only the official summary by the Congressional Research Service, the Library of Congress’s nonpartisan research staff. It can miss nuance, so check the official summary and the bill text for details.
2nd SessionS. 4323
A BILL
Ensuring Access to Lower-Cost Medicines for Seniors Act
Sponsor: Sen. James Lankford (R-OK) · Introduced Apr 16, 2026 · Health · 1 version of the text
Sources: Congress.gov actions and votes · bill text from GovInfo · latest official action Apr 16, 2026: “Read twice and referred to the Committee on Finance.”