Dymista patent expiration?

Dymista® (azelastine hydrochloride + fluticasone propionate nasal spray) is a branded combination product. “Patent expiration” can mean different things (primary patents on the product, exclusivity periods, or specific listed patents tied to a particular country).

What I can tell you

• Dymista is already widely marketed in the EU/UK/US, so the initial exclusivities/patents covering the originator product are generally past or near the past in most major markets.
• Exact dates depend on jurisdiction (US vs EU/UK), and on whether you mean:
  1. U.S. Orange Book patents (patent numbers + expiration dates),
  2. EU/UK supplementary protection certificate (SPC) and marketing exclusivity,
  3. or local country listings.

Quick questions (so I can give the exact expiration date)

1. Which country/region do you mean? (US, EU, UK, Canada, etc.)
2. Do you want patent expiration specifically, or also data exclusivity/market exclusivity (e.g., FDA exclusivity, EU exclusivity)?
3. Are you asking about the whole Dymista product or a specific strength/formulation?

If you tell me the country, I can look up the relevant patent listing framework and give you the specific expiration date(s) and what they cover.