Stabilization of Humira sales after the initial erosion, coupled with strong growth of its newer drugs Skyrizi and Rinvoq for autoimmune disorders, could provide a floor to its earnings in 2024. "Now it's a question of what will the volume erosion look like?" In the fourth quarter, Humira sales dropped 26.5% to $573 million in international markets such as Europe, where it already faces competition from multiple less expensive versions. Overall, Humira sales rose 4.6% to $5.58 billion, in line with estimates, lifted by growth in the U.S. market. Excluding items, AbbVie earned $3.60 per share in the fourth quarter, beating analysts' average estimates by 4 cents.

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