Pfizer-Allergan to take healthcare M&A deals to above $600 bln in 2015

Nov 23 (Reuters) - Pfizer Inc's looming deal to buy Botox maker Allergan Plc for more than $150 billion will cap a record-breaking run for mergers and acquisitions in the healthcare sector, taking the cumulative value of deals in 2015 to more than $600 billion.