Which formulary tier corresponds to specialty drugs (high cost, coinsurance)?

• A. Formulary Tiers 1
• B. Formulary Tiers 2
• C. Formulary Tiers 3
• D. Formulary Tiers 4

Answer: (D)

Drug formulary tiers group medications by cost and how they’re managed; higher tiers mean greater cost-sharing for the patient. Specialty drugs are extremely expensive and require extra oversight, so plans place them in the top tier to reflect their high cost. In that tier, cost-sharing is typically through coinsurance rather than a small fixed copay, which means the patient pays a percentage of the drug price rather than a flat amount. This setup helps the plan manage the financial impact of these high-cost therapies while still providing access when clinically appropriate. Lower tiers cover generics and more common brand-name drugs and usually involve smaller out-of-pocket costs.