Drug plan prices touted during Medicare open enrollment can rise within a month

A recent analysis by AARP, which is lobbying Congress to pass legislation to control drug prices, compared drugmakers' list prices between the end of December 2021 — shortly after the Dec. 7 sign-up deadline — and the end of January 2022, just a month after new Medicare drug plans began. Researchers found that the list prices for the 75 brand-name drugs most frequently prescribed to Medicare beneficiaries had risen as much as 8%.