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Filgrastim-Sndz
CY2024| share of claims | prescribers, this brand row | |
|---|---|---|
| Zarxio | 100.0% | 5,211 |
- Market size 24,629 claims for Filgrastim-Sndz in CY2024, and 24,788 30-day fills, as CMS publishes them.
- Growth Up 14.9% year over year; +11.9% over five years (2020 → 2024).
- Prescribers CMS reports 5,211 prescribers of Zarxio nationally in CY2024.
- Where it is prescribed The three largest state markets are California, New York, and Texas — together 43.0% of claims.
Claims count dispensed fills, refills included; a claim is not a prescription written and not a patient count. CMS withholds any prescriber with 10 or fewer claims for a brand row, so a prescriber missing from a list is not confirmed absent and every disclosed count is a floor. Totals and prescriber rows come from two separate CMS files that are not built to reconcile, so a prescriber list never adds up to a published total. Shares are computed only against the totals CMS publishes for the place. Prescriber counts belong to one brand row and are never summed across brands, because one clinician can write several brands. All figures are calendar years.
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