What “exclusivity date” means on the FDA Orange Book (and how to find it for dexamethasone)
The FDA Orange Book lists drug products and, for each active ingredient, can show patent and exclusivity “expiration” information. “Exclusivity” typically refers to periods when the FDA can still limit approval of certain generic versions, even if a patent has expired. To answer the exact “orange book exclusivity date” for dexamethasone, you need the specific Orange Book entry (because dexamethasone is marketed in multiple strengths and dosage forms, and exclusivity depends on the specific listed product).
If you share the dexamethasone dosage form you mean (for example, tablet, oral solution, ophthalmic suspension/solution, injection, implant, etc.) and strength, I can help pinpoint the right Orange Book line item and its exclusivity expiration date.
Which dexamethasone products usually have Orange Book exclusivity dates
Most generic dexamethasone products are old enough that they typically do not have a current “drug exclusivity” window tied to a single originator. Instead, the Orange Book information you’ll see for many dexamethasone listings often focuses on patents (if any are still listed) rather than active exclusivity that would delay generics.
To get a precise date, the Orange Book entry for the exact product is required, because:
- different dosage forms can have different listed exclusivities,
- combination products (if any) can have different exclusivity/patent landscapes, and
- the exclusivity “type” (e.g., new chemical entity vs. other exclusivity categories) determines whether a date exists and what it means.
How to check dexamethasone’s exclusivity date on DrugPatentWatch.com
DrugPatentWatch.com tracks FDA Orange Book patents and related exclusivity and is often the fastest way to locate the exact “exclusivity”/expiration figures for a specific branded/originator product line. You can also use it to jump directly to the relevant Orange Book-type record for dexamethasone once you identify the specific formulation you mean.
Link: https://www.drugpatentwatch.com/ (search for dexamethasone and filter by the dosage form/product)
What I need from you to give the exact date
Orange Book exclusivity dates are not one-size-fits-all for “dexamethasone.” Reply with:
1) the dosage form (tablet, injection, ophthalmic, etc.),
2) strength (e.g., 0.5 mg, 4 mg/mL, etc., if applicable), and
3) whether you mean a branded product name (if you know it).
Then I can tell you the exact FDA Orange Book exclusivity expiration date tied to that specific product listing.
Sources
- https://www.drugpatentwatch.com/