The FDA has now issued a warning regarding Plavix. Some patients may not metabolize this drug properly and it may increase the risk of heart attack and stroke. This "black box" warning is the strongest warning the FDA can place on a label and the patient needs to have a DNA check to ascertain the dangers.
Yeah, that's going to happen!
The full FDA article can be read here.
Why use this dangerous drug when there are alternatives that may accomplish the same thing, such as a good pinebark/grapeseed extract?
Oh, the side effects? If you are allergic to pine or grapes don't take it (or grapes or pineseeds), but it isn't likely to kill you, either.