Zoledronic acid · ZOLEDRONIC ACID 4 mg/5mL · Injection, Solution, Concentrate · Intravenous · Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc.
NDC 23155-0170-31 · 1 VIAL, GLASS in 1 CARTON / 5 mL in 1 VIAL, GLASS · ANDA · View full market →
11 companies supply this market — deep enough that no single failure threatens the supply. Put together: this looks like a healthy supply — the boring kind, which is exactly what you want. Historically, drugs in this position went on to a new shortage within 90 days about 0.4% of the time — roughly 2× the typical drug (0.1%).
The numbers behind every sentence are on this page below — and the Watch button emails you when any of them move.
The same NDC has different prices depending on who is paying. Units differ between rungs — compare within a rung over time, not rung against rung, unless the units match.
Each rung is the newest figure for this NDC from one federal price system, shown with its own unit. Part D is matched by drug name because CMS publishes no NDCs there; it is gross spending, before confidential rebates.
Pipeline and calculations built by Claude (Fable 5) from the public datasets above. Educational only — verify against primary sources before acting.
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 →Manufacturer list price as filed — not what pharmacies actually pay after discounts.
Some pressure is visible, but not much — here’s everything the score found to count.
The score counts pressure that is already visible — fewer makers, shortages, recalls, falling prices. 0 means none of it; 100 means all of it at once. Recomputed daily · as of Sep 3, 2026
sterile injectable · OAI inspection at a producing facility (24 months) · sole-source market
For scale: the typical drug’s chance is about 0.1% — this one is 2× that.
Backtested statistical model over the whole market, not this package alone. Model details →
Establishments this product's FDA label declares, located via FDA registration data. How we built this →
There's no legal definition — it meets 1 of 6 public criteria. Why that matters →
No FDA shortage reports for this drug or its presentations.
No enforcement reports list this package NDC.
| Labeler | Strength | First seen | Last seen |
|---|---|---|---|
| Dr. Reddy's Laboratories Inc. | ZOLEDRONIC ACID 4 mg/5mL | Jul 15, 2026 | Sep 3, 2026 |
| AuroMedics Pharma LLC | ZOLEDRONIC ACID 4 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
| Avenacy Inc. | ZOLEDRONIC ACID 4 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
| BluePoint Laboratories | ZOLEDRONIC ACID 4 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
| Dr. Reddy's Laboratories Limited | ZOLEDRONIC ACID 4 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
| Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc. | ZOLEDRONIC ACID 4 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
| Hikma Pharmaceuticals USA Inc. | ZOLEDRONIC ACID 4 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
| Mylan Institutional LLC | ZOLEDRONIC ACID 4 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
| Northstar Rx Llc | ZOLEDRONIC ACID 4 mg/5mL | Jul 15, 2026 | Sep 2, 2026 |
| BPI Labs LLC | ZOLEDRONIC ACID 4 mg/5mL | Jul 15, 2026 | Aug 31, 2026 |
| Gland Pharma Limited | ZOLEDRONIC ACID 4 mg/5mL | Jul 15, 2026 | Aug 31, 2026 |
Roster from daily NDC Directory diffs — first/last seen dates start July 2026.
DrugDashboards, "Zoledronic acid — NDC 23155-0170-31," retrieved September 3, 2026, https://drugdashboards.com/drug/23155017031.
Free to cite with attribution — see how the data is put together.