Pfizer Shares Plummet on Loss of a Promising Heart Drug
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PfizerÃÂs stock fell almost 11 percent on Monday in a trading frenzy that shaved more than $21 billion off its market value.
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Pfizer Inc.  on Wednesday  reported lower-than-expected quarterly earnings on competition  with generics, and said global sales of cholesterol fighter  Lipitor fell 13 percent amid slipping demand for the company&#39;s  flagship product.
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Global drugs giant Pfizer sees profits fall after a drop in worldwide sales of cholesterol drug Lipitor.
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WASHINGTON (CBS.MW) - Pfizer shares tumbled more than 17 percent Friday morning after the company said a study of Pfizer&#39;s Celebrex drug for use in treating cancer has demonstrated an increased cardiovascular risk.
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Pfizer Inc.'s decision to scrap development of a crucial medicine sent its shares plummeting yesterday as analysts fretted about its future and speculated about which companies it might purchase to shore up its pipeline.
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AstraZeneca Plc suffered its third  setback in two months on Friday as lung cancer drug Iressa  failed to help patients live longer in a major clinical trial,  sending its shares down as much as 9.2 percent.
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Pfizer (PFE:NYSE - news - research) was treading water Monday morning, hovering around its 52-week low amid reports that it plans to halt advertising of its embattled painkiller Celebrex.
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Shares in AstraZeneca tumbled today after a key drug it has developed in the fight against strokes was provisionally rejected by US regulators.
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NEW YORK/LONDON  - Shares of Pfizer Inc.  fell 15.6 percent in opening trade on Monday, wiping out nearly $30 billion of market value, after the world's biggest drugmaker scrapped development of its most important experimental medicine.
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The Dow Jones industrial average fell on Friday after Pfizer Inc. (PFE.N: Quote, Profile, Research) shares opened nearly 19 percent down on trial data for its popular arthritis drug Celebrex that showed increased risk of heart attack.
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Shares in Anglo-Swedish drug giant AstraZeneca drop more than 8% in value after the failure of its Iressa drug in a major clinical trial.
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New prescriptions for Pfizer Inc.'s  arthritis drug Celebrex fell 56 percent last week after the  company released data showing the drug may increase the risk of  heart attacks and strokes, according to Verispan, a market  research company.
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Pfizer Inc. said Saturday it has cut off all clinical trials and development for a cholesterol drug that was supposed to be the star of its pipeline because of an unexpected number of deaths and cardiovascular problems in patients who used it.
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Pfizer Inc.&#39;s shares fell as much as 6.2 percent on Thursday on a Canadian newspaper report linking its arthritis drug Celebrex to 14 deaths.
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Shares of Pfizer (PFE:NYSE - news - research) dropped Thursday after a Canadian newspaper reported that the arthritis drug Celebrex is &quot;suspected of contributing to at least 14 deaths.
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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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Shares in Pfizer Inc  fell around 14 percent in European and pre-opening U.S. trade on Monday after the world's biggest drugmaker scrapped development of its most important experimental medicine.