Medicare Formulary Lookup
Search a medication to see its typical Medicare Part D formulary tier, restrictions like prior authorization or step therapy, an estimated monthly cost, and lower-cost generic alternatives. These are educational estimates — your exact coverage depends on your specific plan.
Every Medicare Part D and Medicare Advantage plan has its own formulary — the list of drugs it covers and what tier each one sits on. Search a medication below for typical coverage, restrictions, and generic alternatives. For your exact copay, compare Part D plans.
Questions about prescription coverage?
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How Part D Formularies Work
What is a formulary?
The list of drugs your Medicare Part D or Medicare Advantage plan covers, organized into pricing tiers.
What are drug tiers?
Tiers group covered drugs by cost — Tier 1–2 are low-cost generics, Tier 3 preferred brands, Tier 4 non-preferred, Tier 5 specialty drugs.
What is prior authorization?
Your plan must approve the drug before covering it, usually to confirm it's medically necessary.
What is step therapy?
You may need to try one or more lower-cost drugs first before the plan covers a more expensive option.
What are quantity limits?
Plans may limit how much of a drug they cover over a period of time for safety or cost reasons.
What if my drug is not covered?
You can request a formulary exception and appeal, switch to a covered alternative, or compare plans during enrollment. We can help.
Frequently Asked Questions
Does Medicare cover Ozempic?
What is a formulary?
What are drug tiers?
What is prior authorization?
What is step therapy?
Can I appeal a coverage denial?
Sources
- Medicare.gov — drug coverage (Part D) — Medicare.gov
- Medicare Plan Finder — Medicare.gov
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