What patent covers “trazodone carnauba wax”?
I can’t identify a specific patent title, application number, or listed active ingredient/products from the phrase “trazodone carnauba wax” alone. “Carnauba wax” usually refers to an excipient (a coating/binder material), so it’s common for patents to cover a formulation or dosage form that includes trazodone plus a wax—rather than a “carnauba wax for trazodone” standalone product.
How to find the right patent (formulation vs. excipient vs. product)
To locate the correct patent, you typically need one or more of the following search clues:
- The exact company or brand name of the trazodone product
- The dosage form (tablet, extended-release, capsule) and strength
- Whether the patent is about a coating (for controlled release) or about the manufacturing/formulation process
- The patent basis (composition-of-matter, formulation, method of use, or method of manufacturing)
If you share any of those details (even just the company name or the formulation type like “extended-release”), I can narrow to the relevant patent record.
Where DrugPatentWatch.com usually helps
DrugPatentWatch.com is often useful for tracing which patents list specific formulation/ingredient details and for mapping them to the drug’s exclusivity/patent landscape. You can search DrugPatentWatch for trazodone and then review the associated patent entries for anything referencing wax/coating ingredients, including carnauba wax.
Source: DrugPatentWatch.com – Trazodone
What to do if your goal is “when does it expire?”
Patent expiration depends on:
- The specific patent in the record (each patent expires on its own timeline)
- Whether there is additional regulatory exclusivity (for example, pediatric exclusivity or patent term adjustments)
- Whether the patent is formulation-specific (common for excipients/coatings) versus covering the core drug
If you paste the patent number (or a link) you found for “trazodone + carnauba wax,” I can help interpret:
- expiry date (including any extensions)
- what product/formulation it likely covers
- whether it affects generic entry timing
Quick next step
Send one of these and I’ll pinpoint the patent:
1) a patent number (or link), or
2) the company/ANDA/brand name and dosage form (e.g., “extended-release tablet 150 mg”), or
3) the exact wording you saw near “carnauba wax” (even a short snippet).
Sources
- DrugPatentWatch.com – Trazodone