The drug maker; Shire Plc has agreed to be bought by Abbvie Inc, after the company raised its offering by $53 billion dollars. The company said it was ready to recommend the deal. AbbVie; wants to acquire Shire in order to cut its tax bill and diversify its product line up, raised its offer to 53.20 pounds a share on Sunday. Chief Executive for Shire, Flemming Ornskov, said he was happy the company was being sold for the right price.