Harvard Health Blog
The trouble with new drugs
By: Robert H. Shmerling, MD, Faculty Editor, Harvard Health Publishing When a drug is approved by the FDA, it may seem like itís only a matter of time before some unexpected side effects are discovered. Perhaps it seems that way because itís true! According to a study of all drugs approved between 2001 and 2010, the FDA announced alerts, warnings, or recalls on about one-third of them in the years after their approval.