The short version
Only one company currently supplies this market — there is no backup if it stumbles.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
CroFab
ovine crotalidae venoms immune fab · CROTALUS ATROX IMMUNE FAB ANTIVENIN (OVINE) 1 g/1; AGKISTRODON PISCIVORUS IMMUNE FAB ANTIVENIN (OVINE) 1 g/1; CROTALUS SCUTULATUS IMMUNE FAB ANTIVENIN (OVINE) 1 g/1; CROTALUS ADAMANTEUS IMMUNE FAB ANTIVENIN (OVINE) 1 g/1 · Injection, Powder, Lyophilized, For Solution · Intravenous · BTG International Inc.
NDC 50633-0110-12 · 2 VIAL, GLASS in 1 CARTON / 1 INJECTION, POWDER, LYOPHILIZED, FOR SOLUTION in 1 VIAL, GLASS · BLA · View full market →
Medicare Part D
No Medicare Part D plan in CMS's quarterly files lists this product. That usually means it is discontinued, a repackager's listing, or a product no plan has added to its formulary.
How Part D pricing works →NADAC price per unit
No NADAC pricing on file for this NDC — NADAC covers drugs dispensed by retail community pharmacies.
Estimated fill cost
WAC per package, as filed
$6,396.00
Reported to Texas DSHS · 2026 annual filing · BTG International Inc.
Manufacturer list price as filed — not what pharmacies actually pay after discounts.
Medicare Part B (ASP)
Payment limit per UP TO 1 GM
$1906.906
HCPCS J0840 · Jul 1, 2026 quarter · typically ASP + 6%
Supply fragility
Not scored — fragility is computed for NADAC-priced NDCs.
Is this a "specialty" drug?
There's no legal definition — it meets 2 of 6 public criteria. Why that matters →
- Part D specialty tier
- Costs ≥ $950/fill
- Biologic (BLA)
- Injectable / infused
- Orphan-drug exclusivity
- REMS program
Regulatory
- Application
- BLA103788
- TE code
- —
- Approval date
- —
- Patents / exclusivity
- None on file
Shortage history
No FDA shortage reports for this drug or its presentations.
Recalls (this NDC)
No enforcement reports list this package NDC.
Manufacturers of ovine crotalidae venoms immune fab (Injection, Powder, Lyophilized, For Solution)
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| BTG International Inc. | CROTALUS ATROX IMMUNE FAB ANTIVENIN (OVINE) 1 g/1; AGKISTRODON PISCIVORUS IMMUNE FAB ANTIVENIN (OVINE) 1 g/1; CROTALUS SCUTULATUS IMMUNE FAB ANTIVENIN (OVINE) 1 g/1; CROTALUS ADAMANTEUS IMMUNE FAB ANTIVENIN (OVINE) 1 g/1 | Jul 22, 2026 | Sep 2, 2026 |
| BTG International Inc. | AGKISTRODON PISCIVORUS IMMUNE FAB ANTIVENIN (OVINE) 1 g/1; CROTALUS ADAMANTEUS IMMUNE FAB ANTIVENIN (OVINE) 1 g/1; CROTALUS ATROX IMMUNE FAB ANTIVENIN (OVINE) 1 g/1; CROTALUS SCUTULATUS IMMUNE FAB ANTIVENIN (OVINE) 1 g/1 | Jul 15, 2026 | Jul 15, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
Cite this page
DrugDashboards, "CroFab — NDC 50633-0110-12," retrieved September 3, 2026, https://drugdashboards.com/drug/50633011012.
Free to cite with attribution — see how the data is put together.