The move could unlock millions of new patients for Novo Nordisk and Eli Lilly and expand access to medications that were previously out of reach for seniors.

Many seniors may be unaware of the landmark coverage shift starting on July 1, with limited advertising seen from the government or Eli Lilly and Novo.

Millions of Medicare enrollees will gain their first-ever coverage for drugs for weight loss under a temporary pilot program that launches July 1.

Popular Novo Nordisk and Eli Lilly drugs are included