Recent studies are raising concerns about whether drugs that have been used by millions of cancer patients might actually be harming them. The popularly used drugs, sold by Amgen, Roche, and Johnson & Johnson, are used to treat anemia caused by chemotherapy and meant to reduce the need for blood transfusions in addition to giving patients more energy. The new studies, however, suggest that the drugs may make the cancer itself worse. The FDA is planning an advisory committee meeting to review the products.
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