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.
National Weed Mix
Xanthium strumarium, Ambrosia trifida, Chenopodium album, Amaranthus retroflexus and Ambrosia artemisiifolia · AMBROSIA ARTEMISIIFOLIA POLLEN .01 g/mL; AMARANTHUS RETROFLEXUS POLLEN .01 g/mL; CHENOPODIUM ALBUM POLLEN .01 g/mL; XANTHIUM STRUMARIUM POLLEN .01 g/mL; AMBROSIA TRIFIDA POLLEN .01 g/mL · Solution · Intradermal; Percutaneous; Subcutaneous · Greer Laboratories, Inc.
NDC 22840-9320-02 · 10 mL in 1 VIAL, MULTI-DOSE · 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.
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
- BLA101833
- 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 Xanthium strumarium, Ambrosia trifida, Chenopodium album, Amaranthus retroflexus and Ambrosia artemisiifolia (Solution)
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Greer Laboratories, Inc. | AMBROSIA ARTEMISIIFOLIA POLLEN .01 g/mL; AMARANTHUS RETROFLEXUS POLLEN .01 g/mL; CHENOPODIUM ALBUM POLLEN .01 g/mL; XANTHIUM STRUMARIUM POLLEN .01 g/mL; AMBROSIA TRIFIDA POLLEN .01 g/mL | Jul 22, 2026 | Sep 2, 2026 |
| Greer Laboratories, Inc. | AMARANTHUS RETROFLEXUS POLLEN .01 g/mL; AMBROSIA ARTEMISIIFOLIA POLLEN .01 g/mL; AMBROSIA TRIFIDA POLLEN .01 g/mL; CHENOPODIUM ALBUM POLLEN .01 g/mL; XANTHIUM STRUMARIUM POLLEN .01 g/mL | Jul 15, 2026 | Jul 15, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
Cite this page
DrugDashboards, "National Weed Mix — NDC 22840-9320-02," retrieved September 3, 2026, https://drugdashboards.com/drug/22840932002.
Free to cite with attribution — see how the data is put together.