The short version
Just 2 companies supply this market — thin enough that a single exit would be felt immediately.
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
HISTEX PD Drops New Formulation
Triprolidine Hydrochloride · TRIPROLIDINE HYDROCHLORIDE 1.25 mg/mL · Syrup · Oral · Allegis Pharmaceuticals, LLC
NDC 28595-0809-30 · 1 BOTTLE in 1 CARTON / 30 mL in 1 BOTTLE · OTC MONOGRAPH DRUG · View full market →
Medicare Part D
Medicare Part D does not cover over-the-counter drugs — by law it pays only for products requiring a prescription.
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
$14.40
Reported to Texas DSHS · 2025 annual filing · Allegis Pharmaceuticals, LLC
Manufacturer list price as filed — not what pharmacies actually pay after discounts.
Medicaid spend (2025)
$2.8M
168,390 prescriptions paid by Medicaid nationally · all Medicaid spend →
Supply fragility
Not scored — fragility is computed for NADAC-priced NDCs.
90-day shortage risk (model v2)
0.1%chance of a new FDA shortage posting for triprolidine hydrochloride (other) in the next 90 days
sole-source market · price up 2% YoY
For scale: the typical drug’s chance is about 0.1% — this one is in ordinary territory.
Backtested statistical model over the whole market, not this package alone. Model details →
Regulatory
- Application
- M012
- 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 Triprolidine Hydrochloride (Syrup)
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Allegis Pharmaceuticals, LLC | TRIPROLIDINE HYDROCHLORIDE 1.25 mg/mL | Jul 15, 2026 | Sep 2, 2026 |
| Allegis Pharmaceuticals, LLC | TRIPROLIDINE HYDROCHLORIDE 2.5 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
| Westminster Pharmaceuticals, LLC | TRIPROLIDINE HYDROCHLORIDE .938 mg/mL | Jul 15, 2026 | Sep 2, 2026 |
| Westminster Pharmaceuticals, LLC | TRIPROLIDINE HYDROCHLORIDE 1.25 mg/mL | Aug 14, 2026 | Aug 28, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
Cite this page
DrugDashboards, "HISTEX PD Drops New Formulation — NDC 28595-0809-30," retrieved September 3, 2026, https://drugdashboards.com/drug/28595080930.
Free to cite with attribution — see how the data is put together.