By Serena Gordon HealthDay Reporter MONDAY, Jan. 28, 2019 (HealthDay News) -- Newer blood thinners are recommended over warfarin for people with the heart condition called atrial fibrillation (a-fib) in updated treatment guidelines issued by three major American heart groups. The newer drugs are called non-vitamin K oral anticoagulants (NOACs). Examples include dabigatran (Pradaxa), rivaroxaban (Xarelto) and apixaban (Eliquis). They …