A recently completed study by Canadian researchers, shows that the increased risk of heart attacks caused by Vioxx, begins very soon after starting the drug. This seems to be a contradiction of earlier reports that the Vioxx risk only affected long-term users of the drug. This recent study also shows that the risk of heart attacks from Vioxx does not immediately stop after a patient stops using the drug. The study is scheduled for publication in the Journal of the Canadian Medical Association later this month. Merck pulled Vioxx from the market in 2004 after a drug trial demonstrated that Vioxx caused an increased risk of thrombotic events, including heart attacks. Thousands of people are currently involved in litigation with Merck, regarding heart attacks suffered while using Vioxx.
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