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Irvine-based drug maker Allergan Inc. is in active talks with New Jersey-based Actavis PLC about a deal, sources familiar with the situation told Bloomberg today.

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Allergan, whose stock was up 1% to a market value of $58.8 billion in midday trading, is seeking an alternative deal to a hostile bid valued at some $53.3 billion from Canada’s Valeant Pharmaceuticals International Inc. and activist investor Bill Ackman, who owns just less than 10% of Allergan through his Pershing Square Capital Management LP.

Ackman has more recently set a benchmark of about $60 billion for buying Allergan, which has yet to engage in negotiations.