AbbVie

AbbVie was created when Abbott Laboratories decided to split its business into two parts: a stable, slower-growing medical products company (Abbott) and a high-growth, innovation-focused pharmaceutical company (AbbVie). AbbVie inherited Abbott’s most valuable asset, Humira, a drug used to treat rheumatoid arthritis and Crohn’s disease. Overnight, AbbVie became one of the most profitable pharmaceutical companies in the world, with a single product responsible for a massive share of its total corporate revenue.

AbbVie became famous for its aggressive use of patent law to extend its monopoly over Humira. The company filed hundreds of secondary patents related to manufacturing processes, delivery systems, and new therapeutic indications, effectively keeping generic competitors out of the market for nearly a decade longer than originally expected. This legal "fortress" strategy allowed AbbVie to generate staggering, industry-leading margins, funding the development of its broader pipeline.

Knowing that the eventual loss of Humira’s patent protection was inevitable, AbbVie needed to acquire a massive, ready-to-sell product portfolio. It spent $63 billion to acquire Allergan, the maker of Botox. The massive acquisition was a high-stakes, debt-heavy bet that Botox and Allergan’s other high-margin beauty and eye-care products could offset the eventual, painful revenue cliff that Humira would face once generics arrived.

The long-feared moment finally arrived: the patent on Humira expired, and cheap biosimilar competition flooded the market. AbbVie’s revenue dropped, but the company proved resilient. Because of the aggressive diversification strategies put in place after the Allergan acquisition, the firm was able to weather the storm. It focused on its newer, specialized immunology drugs, Skyrizi and Rinvoq, which were engineered to become the new "stars" of the company’s product catalog.

By mid-2026, AbbVie has successfully survived the loss of its Humira monopoly. By effectively migrating its high-value patient base to its new immunology drugs and leveraging the high-margin stability of its Botox and aesthetics business, the company has stabilized its financial trajectory. AbbVie stands today as a diversified, high-profit leader in both therapeutic immunology and elective medical aesthetics.