Washington, Jan 29 - People who buy prescription medications over the Internet, especially drugs purporting to treat erectile dysfunction, are playing Russian roulette with their lives, a new study contends.

At best the drugs won't help you and at worst they could kill you, the review article said.

"You may be wasting your money or you may actually be hurting yourself," said Dr. Margaret E. Wierman, professor of medicine at the University of Colorado at Denver and chief of endocrinology at the Denver VA Medical Center, who was not involved with the study.

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