US Patent

US8859623 — Methods and compositions of stable phenylephrine formulations

Method of Use · Assigned to Paragon Bioteck Inc · Expires 2033-11-14 · 7y remaining

Vulnerability score 67/100 Moderate — design-around opportunities exist

What this patent protects

This patent protects methods and compositions for stabilizing phenylephrine formulations, particularly those that remain stable over time when stored at low temperatures.

USPTO Abstract

The invention is directed to methods and compositions of stabilizing phenylephrine formations. The composition has good time-dependent stability at low temperature and has no change in its outward appearance even after having been stored at least 6 months.

Drugs covered by this patent

phenylephrine-hydrochloride (PHENYLEPHRINE HYDROCHLORIDE)

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-1594`	—	phenylephrine-hydrochloride
`U-1594`	—	phenylephrine-hydrochloride

Patent Metadata

Patent number: US8859623
Jurisdiction: US
Classification: Method of Use
Expires: 2033-11-14
Drug substance claim: No
Drug product claim: No
Assignee: Paragon Bioteck Inc
Source: FDA Orange Book + USPTO grounding via Google Patents

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.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.