Generic entry timeline

Testosterone Cypionate generics — when can they launch?

Testosterone Cypionate (Testosterone Cypionate) · Azurity · 3 active US patents · 0 expired

Earliest patent expiry
2039-03-25
13 years remaining
Full patent estate to
2039-03-25
complete protection through 2039
FDA approval
1978
Azurity

Where Testosterone Cypionate sits in the generic timeline

Long-dated protection: earliest active US patent for Testosterone Cypionate extends to 2039 (~13 years out). Generic competition is at least 4 years away. Lifecycle moves (new formulations, label extensions, combination filings) typically execute 18-36 months ahead of cliff.

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.

  • Formulation — 3 patents

Sample patent estate

Showing 3 of 3 active US patents. View full estate on the Testosterone Cypionate drug page →

  • US11642355 Formulation · expires 2039-03-25
    This patent protects stable pharmaceutical compositions of testosterone or its esters, including a specific process for stabilizing them.
    USPTO title: Pharmaceutical compositions of testosterone
  • US11311554 Formulation · expires 2039-03-25
    This patent protects stable pharmaceutical compositions of testosterone or its esters, including a specific oil vehicle and stabilizing amount of benzyl alcohol.
    USPTO title: Pharmaceutical compositions of testosterone
  • US12138271 Formulation · expires 2039-03-25
    This patent protects stable pharmaceutical compositions of testosterone or its esters, including a specific process for stabilizing them through aging.
    USPTO title: Pharmaceutical compositions of testosterone

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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