AbbVieโ€™s $63 billion acquisition of Allergan was motivated in large part by the Illinois-based companyโ€™s belief in the blockbuster wrinkle treatment Botoxโ€”and its growth prospects.

But just as the deal became final in May of last year, the coronavirus pandemic tossed a monkey wrench into the equation. After all, who worries about crowโ€™s feet when a deadly virus is on the loose?

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