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Ensuring Access to Lower-Cost Medicines for Seniors Act

5/12/2026, 8:29 PM

Summary of Bill S 4323

The bill titled "A bill to amend title XVIII of the Social Security Act to require PDP sponsors of a prescription drug plan and Medicare Advantage organizations offering an MA-PD plan under part D of the Medicare program that use a formulary to include certain generic drugs and biosimilar biological products on such formulary, and for other purposes" was introduced in the 119th Congress on April 16, 2026.

Congressional Summary of S 4323

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.

Current Status of Bill S 4323

Bill S 4323 is currently in the status of Bill Introduced since April 16, 2026. Bill S 4323 was introduced during Congress 119 and was introduced to the Senate on April 16, 2026.  Bill S 4323's most recent activity was Read twice and referred to the Committee on Finance. as of April 16, 2026

Bipartisan Support of Bill S 4323

Total Number of Sponsors
1
Democrat Sponsors
0
Republican Sponsors
1
Unaffiliated Sponsors
0
Total Number of Cosponsors
1
Democrat Cosponsors
1
Republican Cosponsors
0
Unaffiliated Cosponsors
0

Policy Area and Potential Impact of Bill S 4323

Primary Policy Focus

Health

Alternate Title(s) of Bill S 4323

A bill to amend title XVIII of the Social Security Act to require PDP sponsors of a prescription drug plan and Medicare Advantage organizations offering an MA-PD plan under part D of the Medicare program that use a formulary to include certain generic drugs and biosimilar biological products on such formulary, and for other purposes.
A bill to amend title XVIII of the Social Security Act to require PDP sponsors of a prescription drug plan and Medicare Advantage organizations offering an MA-PD plan under part D of the Medicare program that use a formulary to include certain generic drugs and biosimilar biological products on such formulary, and for other purposes.

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