Castor 1 g/mL Medicare Part D Coverage
cover Castor
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Frequently Asked Questions about Castor
0% of Medicare Part D plans cover Castor. Coverage varies by plan and geographic area.
Costs vary by plan. Enter your ZIP code above to see exact prices for plans in your area.
The tier placement for Castor varies by plan. Compare plans to find the best tier for your medication.
0% of plans require prior authorization for Castor. Prior authorization means your doctor must confirm the drug is medically necessary before the plan will cover it.
Coverage statistics based on CMS formulary data for plan year 2026. Data updated regularly. Methodology →