US drugs giant Pfizer has sealed a deal to buy Botox-maker Allergan for $160bn (£106bn) in what is the biggest pharmaceuticals deal in history. Read the full story

Valeant Pharmaceuticals has extended the acquisition period for Allergan. Read the full story

Allergan has closed a transaction to acquire worldwide rights to TARIS Biomedical’s lead program in a pharma deal. Read the full story

Valeant Pharmaceuticals and Pershing Square plan to approach the shareholders of Allergan for a hostile takeover. Read the full story

The term 'top pharma' can relate to the top pharmaceutical companies or the top 10 or 50... Read the full story

Allergan is a top pharmaceutical company based in Irvine, California,USA Read the full story

Allergan announced that its Board of Directors has unanimously rejected the unsolicited proposal announced by Valeant Pharmaceuticals International, Inc.  on April 22, 2014. Read the full story

Allergan is currently the subject of much speculation as Valeant Pharmaceuticals looks to acquire it. Valeant Pharmaceuticals, well known for building its company via acquisitions, put in a $46 billion bid one week ago to acquire Californian based botox maker Allergan. Read the full story

Allergan has contacted companies including Sanofi and Johnson & Johnson to see if either would be interested in acquiring the Botox maker, said people with knowledge of the matter, as it explores its options after receiving an unsolicited $45.7 billion bid from Valeant Pharmaceuticals International Inc. Read the full story