When it comes to which brands spent the most on doctor payments, 2014 crowned a new king--and that's diabetes drug Bydureon. Maker AstraZeneca ($AZN) shelled out $22 million, helping the med eclipse Novo Nordisk's ($NVO) Victoza, one of last year's top spenders--and a head-to-head competitor. More from FiercePharmaMarketing