Rx
Coverage

Prescription Drugs

Formularies, tiers, and the coverage gap.

Medicare prescription drug coverage comes through Part D — either a stand-alone plan or built into a Medicare Advantage plan.

Key points

  • Every plan has a formulary — check that your medications are on it.
  • Drugs are grouped into tiers; lower tiers cost less.
  • The coverage gap ("donut hole") has narrowed, and there's now a yearly out-of-pocket cap.
  • Plans change formularies and pricing every year — it pays to review during AEP.

Next steps

Related topics

Educational only. This information is not personalized advice. For your specific situation, verify at Medicare.gov or speak with a licensed Medicare professional.