The biggest problem is patients on Vicodin or Percocet, a similar combo, who take too much.

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Endo Pharmaceuticals, which makes the brand-name Percocet, did not immediately return a phone call seeking comment.

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The 36-year-old from New Jersey began taking the painkiller Percocet to get high at weekends.

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On the one side are doctors such as Vad who do everything they can to avoid opioid painkillers such as Percocet and OxyContin.

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