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Briviact is a brand of brivaracetam. What agents check before quoting it: how many 2026 Part D plans cover it, on which tier, with what restrictions and copays, by plan type, carrier and state.
In 2026, 3,504 of 5,496 Medicare Part D and Medicare Advantage drug plans (63.8%) list Briviact on their formulary, across 179 of 328 formularies. The most common placement is tier 5 (3,193 plans, 91.1% of those covering it). 2,748 of the covering plans require prior authorization (78.4%), 0 step therapy and 3,300 a quantity limit.
38 covering plans charge a flat copay for a 30-day supply at a preferred retail pharmacy after the deductible — median $0, 38 of them $0; 3,466 charge coinsurance instead — median 25% of the drug's cost. Once a member's out-of-pocket drug spending reaches $2,100 in 2026, covered drugs cost $0 for the rest of the year.
2025: 5,631 of 5,631 plans covered it (100%); 2026: 3,504 of 5,496 (63.8%).
Of 4,368 plans offered in both years, 0 added it to the formulary and 1,689 dropped it.
Among plans covering it both years, 34 moved it to a higher tier and 6 to a lower one; 291 added prior authorization and 0 removed it.
Medicare Part D paid for 150,001 30-day fills of Briviact in 2024 for about 15,493 enrollees, at an average total cost of $1,344.05 per 30-day fill (CMS Part D Prescribers by Geography and Drug, national).
Price Briviact and the rest of a client's list on every plan in their county.
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Free tools for licensed insurance agents. Data from CMS public files; verify with plan documents before advising a client.
Counts are over every Medicare Advantage drug plan and stand-alone Part D plan in the CMS monthly formulary files, excluding employer plans. A plan counts as covering a drug when any strength or form of it is on the plan’s formulary; the tier, prior authorization, step therapy and quantity limit shown are the most favorable version on that formulary. Copays are for a 30-day supply at a preferred retail pharmacy after the deductible. This is a reference for licensed agents, not a plan recommendation; verify with the plan’s formulary before advising a client. Source: CMS Part D formulary files (release 09/16/2026). CMS formulary data.