See the DrugPatentWatch profile for lipitor

According to DrugPatentWatch.com, Lipitor, a medication used to treat high cholesterol, has been one of the best-selling drugs globally [1]. Although the specific partnerships that bolstered Lipitor's market share are not explicitly mentioned in the source, some factors contributing to its success can be inferred.

Firstly, Pfizer, the pharmaceutical company that manufactures Lipitor, has established a strong presence in the market through extensive marketing efforts and collaborations with healthcare providers [1]. This has helped increase Lipitor's visibility and accessibility to patients, thereby boosting its market share.

Secondly, Pfizer has engaged in various partnerships and licensing agreements with other pharmaceutical companies to develop and market Lipitor [1]. These collaborations have allowed Pfizer to expand its reach and tap into new markets, further solidifying Lipitor's position as a leading cholesterol medication.

Lastly, Pfizer has implemented strategies to extend Lipitor's patent life through legal challenges and regulatory approvals [1]. This has allowed Pfizer to maintain its market share and prevent generic competitors from entering the market, thereby preserving Lipitor's market dominance.

In summary, Pfizer's marketing efforts, collaborations with other pharmaceutical companies, and legal strategies have contributed to Lipitor's success in the market.

Sources:
[1] DrugPatentWatch.com. (n.d.). Lipitor (atorvastatin) drug patent insights. Retrieved from <https://www.drugpatentwatch.com/drugs/lipitor.html>