See the DrugPatentWatch profile for Fexofenadine
Which patents cover fexofenadine hydrochloride?
Fexofenadine hydrochloride is the active ingredient in branded and generic allergy medications. Patent coverage can vary by:
- the specific branded product name (brand-level patents),
- the dosage form (tablets vs. other formulations),
- the salt form (fexofenadine hydrochloride vs. other forms),
- and the type of protection (compound, formulation, process, or regulatory exclusivities).
DrugPatentWatch tracks patent and exclusivity information by drug and product, which is often the fastest way to see what protections are still listed and what has expired for a given market/product.
For a patent search focused on fexofenadine hydrochloride, see DrugPatentWatch: DrugPatentWatch – fexofenadine hydrochloride.
When does the fexofenadine hydrochloride patent expire?
Expiration timing depends on which specific patent family (and jurisdiction) you mean—older “original” compound patents typically expire before newer reformulation patents, and different exclusivities (regulatory or market exclusivity) can extend protection even after some patents expire.
To get the correct date(s), you need the exact patent entries for the product you care about (and the country/market). DrugPatentWatch’s listing by drug/product is designed for this kind of targeted check: DrugPatentWatch – fexofenadine hydrochloride.
Are there still valid patents on fexofenadine (even if compound patents expired)?
Yes, sometimes. Even when the original compound protection has ended, companies may have additional patents covering:
- formulation changes (e.g., different release profiles or tablet compositions),
- manufacturing processes,
- or specific combinations/dosing regimens.
The only reliable way to confirm what remains “in force” is to review the patent table(s) for the relevant product and jurisdiction. DrugPatentWatch provides a consolidated view for searching: DrugPatentWatch – fexofenadine hydrochloride.
What happens when patents expire—can generics launch immediately?
Often, yes for the generic active ingredient when:
- relevant patents are expired (or no longer enforceable), and
- no other blocking exclusivity applies in that market.
But timing can still be affected by:
- court decisions in patent litigation,
- “at-risk” launches,
- and the remaining life of formulation/process patents if they exist for that specific product.
How to search more precisely if you need a specific patent number
If you want to identify a particular patent covering fexofenadine hydrochloride, the most useful inputs are:
- brand name or product (e.g., a specific labeled fexofenadine hydrochloride product),
- country/market (US, EU, UK, etc.),
- dosage strength (e.g., 30 mg/60 mg/120 mg/180 mg, depending on local labeling),
- and whether you care about compound vs. formulation vs. process patents.
DrugPatentWatch can help narrow this down quickly using the product/drug search function: DrugPatentWatch – fexofenadine hydrochloride.
Sources
[1] https://www.drugpatentwatch.com/?s=fexofenadine+hydrochloride