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Insurance University

Prescription Formulary Checklist

How to check drug tiers, prior authorization, step therapy, quantity limits, and pharmacy networks.

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What to understand

This topic affects real coverage decisions because the same insurance word can mean different things across Medicare, ACA, employer plans, international insurance, and travel medical policies.

Questions to ask

  • Which official source or licensed professional can verify this for my situation?
  • Does this affect my doctors, hospitals, prescriptions, or expected procedures?
  • What should I get in writing before enrolling or scheduling care?
  • Are there exclusions, deadlines, or state/country rules?

Next step

Use the navigator to organize your situation, then verify plan-specific details with official sources, insurers, employer benefits teams, or licensed professionals.

Educational guidance only.

Insurance Navigator does not sell, solicit, negotiate, or recommend a specific insurance plan. Verify coverage with Medicare.gov, HealthCare.gov or your state Marketplace, insurers, employer benefits teams, or licensed insurance professionals.

Do not enter emergency symptoms or highly sensitive medical details. For urgent medical needs, contact emergency services or a licensed healthcare professional.