The short version
Only one company currently supplies this market — there is no backup if it stumbles.
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Kali sulphuricum
Potassium Sulfate · POTASSIUM SULFATE 1 [hp_M]/[hp_M] · Pellet · Oral · Boiron
NDC 00220-2979-41 · 1 [hp_M] in 1 TUBE · UNAPPROVED MEDICAL GAS · 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 1 of 6 public criteria. Why that matters →
- Part D specialty tier
- Costs ≥ $950/fill
- Biologic (BLA)
- Injectable / infused
- Orphan-drug exclusivity
- REMS program · Xywav and Xyrem
Regulatory
- Application
- —
- TE code
- —
- Approval date
- —
- Patents / exclusivity
- —
Shortage history
No FDA shortage reports for this drug or its presentations.
Recalls (this NDC)
No enforcement reports list this package NDC.
Manufacturers of Potassium Sulfate (Pellet)
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Boiron | POTASSIUM SULFATE 1 [hp_M]/[hp_M] | Jul 15, 2026 | Sep 2, 2026 |
| Boiron | POTASSIUM SULFATE 12 [hp_C]/12[hp_C] | Jul 15, 2026 | Sep 2, 2026 |
| Boiron | POTASSIUM SULFATE 15 [hp_C]/15[hp_C] | Jul 15, 2026 | Sep 2, 2026 |
| Boiron | POTASSIUM SULFATE 200 [kp_C]/200[kp_C] | Jul 15, 2026 | Sep 2, 2026 |
| Boiron | POTASSIUM SULFATE 30 [hp_C]/30[hp_C] | Jul 15, 2026 | Sep 2, 2026 |
| Boiron | POTASSIUM SULFATE 6 [hp_C]/6[hp_C] | Jul 15, 2026 | Sep 2, 2026 |
| Boiron | POTASSIUM SULFATE 6 [hp_X]/1 | Jul 15, 2026 | Sep 2, 2026 |
| Boiron | POTASSIUM SULFATE 9 [hp_C]/9[hp_C] | Jul 15, 2026 | Sep 2, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
Cite this page
DrugDashboards, "Kali sulphuricum — NDC 00220-2979-41," retrieved September 3, 2026, https://drugdashboards.com/drug/00220297941.
Free to cite with attribution — see how the data is put together.