Generic entry timeline

PREDNISOLONE ACETATE generics — when can they launch?

PREDNISOLONE ACETATE (PREDNISOLONE ACETATE) · · 2 active US patents · 0 expired

Earliest patent expiry
2028-10-11
2 years remaining
Full patent estate to
2028-10-11
complete protection through 2028
FDA approval
1955

Where PREDNISOLONE ACETATE sits in the generic timeline

Imminent generic cliff: earliest active US patent for PREDNISOLONE ACETATE expires in 2028 (~2 years from today). ANDA filers are likely already preparing Paragraph IV certifications. Expect first-filer 180-day exclusivity competition imminently.

Under US Hatch-Waxman, a generic enters via an ANDA (Abbreviated New Drug Application) and may file with one of four Paragraph IV certifications attacking the brand's listed patents. If the brand sues within 45 days, a 30-month FDA approval stay is triggered. First Para IV filer typically gets 180-day market exclusivity.

Patent estate by type — active patents

Method-of-use patents only carve out specific indications; generics can launch with a "skinny label" omitting those uses. Composition-of-matter patents block the molecule itself.

  • Method of Use — 2 patents

FDA U-codes carved out by PREDNISOLONE ACETATE patents

Method-of-use patents are listed against specific FDA Patent Use Codes ("U-codes") representing carved-out indications. Generics can launch with a label that omits these uses.

U-codeDescription
U-1068(no description)
U-139(no description)

Sample patent estate

Showing 2 of 2 active US patents. View full estate on the PREDNISOLONE ACETATE drug page →

  • US7799331 Method of Use · expires 2028-10-11
    This patent protects a novel oral suspension formulation of prednisolone acetate for treating patients in need of the drug.
    USPTO title: Oral suspension of prednisolone acetate
  • US7799331 Method of Use · expires 2028-10-11
    This patent protects a novel oral suspension formulation of prednisolone acetate for treating patients in need of the drug.
    USPTO title: Oral suspension of prednisolone acetate

Sources

Patent term extensions (PTR, pediatric exclusivity), Hatch-Waxman 30-month stays, and FDA regulatory exclusivity (NCE/ODE/PED) may shift the effective generic entry date. Not legal advice.

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