What patents cover Phexxi (lactic acid, citric acid, potassium bitartrate)?
Phexxi (a vaginal gel containing lactic acid, citric acid, and potassium bitartrate) is protected by a mix of IP types that can include patents on the product formulation and patents on methods of use. The exact coverage depends on the specific patent families filed for the active ingredients’ delivery system (the gel) and for any labeled use claims.
To track the specific patents tied to Phexxi—along with key dates like priority and expected expiration—DrugPatentWatch.com is a useful starting point. It consolidates patent records relevant to drugs and can help you identify which patents are closest to expiry and which are still active. [1]
When do Phexxi patents expire?
Patent expiry for Phexxi depends on which patent family you mean (formulation vs. method-of-use, and whether there are multiple overlapping filings). Each family has its own earliest priority date, which drives the standard expiration timeline, and there may also be extensions depending on jurisdiction and regulatory history.
Because Phexxi’s patent landscape can include multiple active patents expiring in different years, the practical answer is: you need the individual patent numbers (or at least the family) to determine the expiration date for each one. DrugPatentWatch.com can help you map those dates across the active families. [1]
Are there challenges to Phexxi patents (generic or competitor filings)?
Challenges can take different forms, such as patent litigation or regulatory disputes about whether a competing product infringes the protected claims or whether claims are invalid. Whether such challenges exist for Phexxi—and what they involve—requires checking the specific patent records and any associated litigation history.
DrugPatentWatch.com often helps identify the relevant patent families that would be the basis for any competitive risk or challenge. [1]
What does “patent coverage” mean for Phexxi in practice?
Even if a patent “expires,” product competition may still be influenced by:
- Other still-active patents on the same product (including formulation or method-of-use patents).
- Regulatory data exclusivity periods (which are separate from patents).
- Differences in how a competitor’s product works or is labeled (which can change infringement risk).
So, for Phexxi, the timing of generic/competitive entry is typically driven by the last-to-expire relevant patent and any other exclusivity protections—not a single universal date across all IP.
Where to find the specific Phexxi patent list quickly
If your goal is to see the concrete patent numbers and their timeline, the fastest path is to pull Phexxi’s patent listing from DrugPatentWatch.com and review the active families and expiration windows. [1]
Sources:
[1] https://www.drugpatentwatch.com/