US11234954 — Low-dose doxepin for treatment of sleep disorders in elderly patients
Method of Use · Assigned to Currax Pharmaceuticals LLC · Expires 2028-01-18 · 2y remaining
What this patent protects
This patent protects methods of treating sleep disorders in elderly patients by administering initial daily dosages of doxepin of 1-3 mg.
USPTO Abstract
Methods of treating sleep disorders, particularly certain aspects of insomnia, in elderly patients (65 years and older) by administering initial daily dosages of doxepin of 1-3 mg. These ultra-low initial dosages are more effective in elderly versus non-elderly patients in decreasing wake time during sleep, latency to persistent sleep and wake time after sleep, and are particularly efficacious in treating those conditions in the last hour of an 8-hour sleep cycle. Also, the dosages described herein are safe for elderly individuals.
Drugs covered by this patent
FDA Patent Use Codes
When a patent is method-of-use, FDA lists it once per applicable indication ("U-code"). Each U-code carves out a specific therapeutic use that generic filers must either license or design around.
| Code | Description | Drug |
|---|---|---|
U-620 |
— | doxepin-hydrochloride |
U-620 |
— | doxepin-hydrochloride |
Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.
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