Qnexa is the MOST EFFECTIVE of the 3 diet drugs and will be far and away the winner. Don't be scared off by the hypesters who worry about pregnant midget women from Swahili who have low blood sugar and high blood pressure, because for those people, it might be dangerous.
For anybody else, it is safe and EFFECTIVE.
If a person is that overly concerned about safety, they wouldn't be taking ANY drugs at all. They would drink more water.