Do you mean “patent” for triamcinolone? If so, there isn’t a single, simple answer because there are many patents covering different aspects (the base compound, its esters/salts like triamcinolone acetonide, various topical/injectable formulations, nasal sprays, inhalers, and delivery devices). Here’s a quick overview:
- The core corticosteroid triamcinolone (and its common derivative triamcinolone acetonide, TCA) has been around since mid-20th century. Many early patents have expired.
- There are still patents in force in some jurisdictions for specific things, such as:
- particular formulations (creams, ointments, gels, ointments with specific excipients)
- specific esters/salts or salt forms
- manufactured dosage forms (nasal sprays, inhalers, injectables)
- delivery devices or combination products (e.g., nasal spray devices)
- In practice, the well-known products (e.g., Kenalog for injectable triamcinolone acetonide, Nasacort nasal spray) are now available as generics in many markets, suggesting core patents have expired there, though device/formulation patents may still exist in some places.
If you want precise patent numbers or current status, I can help fetch them, but I’ll need:
- The country or region you care about
- The exact product or formulation (e.g., triamcinolone acetonide topical cream, nasal spray, injectable Kenalog, etc.)
Otherwise, you can search yourself using:
- Google Patents or Espacenet
- Search terms like: “triamcinolone acetonide patent”, “triamcinolone topical formulation patent”, “nasal spray triamcinolone patent”, “injection triamcinolone patent”
- Include country names or assignee names if you know them (e.g., Wyeth, Sterling, Sanofi)
Tell me the country and formulation you’re interested in, and I’ll look up the relevant patent information for you.