Pfizer Inc, the No. 1 U.S. drugmaker, and Botox maker Allergan Plc said they were in friendly talks to create a pharmaceutical colossus but the prospect that the company would seek to avoid U.S. taxes sounded political alarm bells.
Both New York-based Pfizer and Dublin-based Allergan said no agreement has been reached and declined to discuss any terms of the deal, which would potentially set up Pfizer to take advantage of Ireland's lower tax rates.
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