avandia and heart failure If you or a loved one has taken the diabetes drug Avandia and suffered serious side effects, you may . 14. . . "Avandia . In NovemberWhile it has been found to aid in the treatment of type 2 diabetes, it has been associated with certain side effects including congestive heart failure. . . . . The FDA is aware of a significant increase in the risk of heart attack and congestive heart failure in patients using Avandia. . Already known to cause fluid accumulation,... more