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Medicare Part D
Formulary Tiers



The Brand-Name and Generic drugs included in the SilverScript formulary are categorized into cost-sharing Tiers that are numbered from 1 to 4. SilverScript Medicare Part D formulary tiers indicate the level of cost sharing for a covered drug. SilverScript plans use a system with four Medicare formulary tiers. The higher the tier, the higher the member’s out-of-pocket cost for the covered drug.

Cost Sharing Tier 1: Generic Drugs

Tier 1 is your lowest-cost Tier. Most generic drugs on the formulary are included in this Tier. Generic drugs contain the same active ingredients as brand drugs and are equally safe and effective. We have also included some preferred brands in this Tier.

Cost Sharing Tier 2: Preferred Brand Drugs

This is your middle-cost Tier, and includes preferred-brand drugs and some non-preferred generic drugs.

Cost Sharing Tier 3: Non-Preferred Brand Drugs

This is your higher-cost Tier and includes non-preferred brand drugs and some non-preferred generic drugs.

Cost Sharing Tier 4: Specialty Tier Drugs

The Specialty Tier is your highest-cost Tier among the Medicare formulary tiers. A Specialty Tier drug is a very high cost or unique prescription drug which may require special handling and/or close monitoring. Specialty drugs may be brand or generic.

Helpful Links on Medicare Formulary Tiers:


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Use the Plan Advisor to help you choose the right plan. Begin by selecting the statement below that best describes what you want from your Medicare prescription drug plan. Based on the statement you choose, the Plan Advisor will highlight the recommended SilverScript plan so you may compare it to the remaining SilverScript plans.

Plan Advisor
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Thank you for using the Plan Advisor. Based on the statement you selected, the most appropriate SilverScript plan is highlighted based on your specific needs. The key differences highlighted by the Plan Advisor are intended only as a basic guideline. Because there are other factors to consider, please review each plan before deciding on the plan that’s right for you and your budget.

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