Lotrimin generics — when can they launch?
Lotrimin (clotrimazole) · Bayer AG · 1 active US patent · 0 expired
Where Lotrimin sits in the generic timeline
Long-dated protection: earliest active US patent for Lotrimin extends to 2042 (~16 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.
- Method of Use — 1 patent
FDA U-codes carved out by Lotrimin 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-code | Description |
|---|---|
U-4276 | (no description) |
Sample patent estate
Showing 1 of 1 active US patents. View full estate on the Lotrimin drug page →
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This patent protects a single-dose packaging unit containing a sterile clotrimazole liquid composition in a blow-fill-seal container with a volume between 0.05 and 8 mL.USPTO title: Single-dose packaged clotrimazole liquid composition
Sources
- FDA Orange Book — patents listed against Lotrimin (NDA filed 1975)
- Lotrimin drug profile — full patent estate, indications, clinical trials, pricing
- Bayer AG patent portfolio
- Patent cliff 2042 — every drug losing US exclusivity that year
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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