Earlier Merck Study Indicated Risks of Vioxx
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Nearly one year ago, Merck received preliminary results from a study of patient records that apparently indicated Vioxx posed cardiovascular risks.
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Internal e-mails at US drug maker Merck show as long as four years ago the company saw a link between Vioxx and increased heart risk.
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Merck (MRK:NYSE - news - research) shares fell early Thursday after a study sponsored by the Food and Drug Administration concluded that its Vioxx arthritis drug put users at a greater risk to heart attacks than Pfizer&#39;s (PFE:NYSE - news - research
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CHICAGO/NEW YORK  - Merck & Co. faces a dual  threat from health insurers and patients' lawyers, after a U.S.  study suggested its Vioxx arthritis drug carries a greater risk  than rival medicines.
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Top executives at pharmaceutical giant Merck & Co. Inc. decided in May 2000 against developing a study to test directly whether its Vioxx painkiller drug might pose a heart risk, The New York Times reported on Saturday.
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People who take Merck & Co. Inc.'s analgesic Vioxx are nearly three times as likely to have heart attacks as those taking Pfizer Inc.'s Celebrex, according to an independent study published on Monday.
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Description: Drug maker Merck knew about the health risks of taking the pain medication Vioxx long before it pulled the drug from the market, The Wall Street Journal reports.
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Merck &amp; Co., which withdrew the Vioxx painkiller last month because of a heart risk, said yesterday that US regulators have asked for more safety data before they will approve the medicine&#39;s successor, Arcoxia.
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It might not just be Vioxx that carries a risk of heart problems. Scientists and European regulators say users of similar pain-relief medications also may have cause for concern.
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A week after the popular arthritis drug Vioxx was yanked because of safety concerns, a top researcher warns similar medications may also pose the same health risks.
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US drugs giant Merck &amp; Co Inc. should have pulled its Vioxx painkiller from the market four years ago, because data showing it raised the risk of heart attacks has existed since 2000, Swiss scientists said on Friday.
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A study in a leading medical journal found Pfizer&#39;s Celebrex does not pose the same risk of causing heart attacks as Vioxx, the competing medicine Merck withdrew from the market because of safety concerns.
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TRENTON, NJ -- Merck &amp; Co. withdrew best-selling arthritis drug Vioxx on Thursday after a study showed the drug doubled the risk of heart attacks and strokes.
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NEW YORK - The recall of Vioxx and the news that Celebrex likewise doubled or tripled the risk of heart attack in a long-term study were bad enough.
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Washington - The health risks found in pain-relieving drugs known as COX-2 inhibitors, such as Vioxx, underscore the need for health authorities to test drugs already on the market, a top United States (US) cardiologist has warned.
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Merck&#39;s (nyse: MRK - news - people ) decision is based on new three-year data from a clinical trial designed to test the effect of Vioxx on preventing colorectalpolyps.
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Merck & Co. said on Wednesday it plans  to release data from a study of its recalled arthritis drug  Vioxx at a meeting of specialists later this month.