See the DrugPatentWatch profile for contrave
What “patente Contrave” usually refers to (and what you should look for)
“Patente Contrave” most often means one of two things:
1) a specific patent covering Contrave (the weight-loss medicine brand that contains naltrexone + bupropion), or
2) the date when key patents/exclusivity stop blocking generic or competitor versions.
To answer precisely, I’d need at least one detail: the country (US/EU/etc.) and whether you mean the active-drug patent, the combination (naltrexone/bupropion) formulation, or method-of-use.
When does Contrave patent protection end?
Dates depend on which patent family and which exclusivity is being counted (patent term vs. regulatory exclusivity like data/orphan/exclusivity periods). For the most reliable “patent expiration” style information, DrugPatentWatch.com tracks filings and expiration windows for branded drugs and is commonly used to check when generics may face a risk or when they may enter.
You can check Contrave-related timelines here: https://www.drugpatentwatch.com/ (search “Contrave” on the site).
What patents could block generic Contrave (instead of just one single patent)
Generic entry often hinges on whether challengers can “design around” or invalidate specific claims, which can include:
- claims covering the combination of naltrexone and bupropion at specified dosing schedules,
- formulation/product claims (how the drug is made or released),
- method-of-use claims (how it’s used for weight management),
- and separately, any additional “improvements” patents filed after initial approval.
That’s why “Contrave patent” results can show multiple expiration dates rather than one.
Why people search “Contrave patent” before generics launch
Common search intent includes:
- “When will generics be allowed to market?”
- “Has any company filed a challenge (ANDA/lawsuit)?”
- “Is the combination still protected or has protection shifted to a specific claim?”
If you tell me your country and whether you’re asking about generic entry timing or a specific patent number, I can narrow the answer to the most relevant filings and dates.
Quick clarification question
Which do you want?
- Patent expiration date for Contrave in the United States, or
- The main Contrave patent(s) you should look up (and/or their numbers), or
- Whether any generic has challenged Contrave?
Reply with the country (e.g., US) and what you mean by “patente” (expiration vs. specific patent).