My husband suffered a mild to moderate heart attack on wednesday, he had been having symptoms blaming a hamburger for food poisoning since monday, ekg said heart attack in progress, he had angioplasty and stent placed, cardiac enzymes were 25-26, placed in icu for observation and monitoring after surgery. Everything was fine until last night when he started to have arterial fibrillations, so they decided to monitor him and administered amiodarone in an IV. However, I read first line therapy is usual class 1c drugs propafenone or flecainide and amiodarone is considered for use only in life threatening situations due to adverse side effects. Should I be concerned? His heart rate is stable now, the drug was started a few hours ago. Please advise, thanks