The FDA has warned Pfizer that its ads for arthritis drugs Celebrex and Bextra are misleading and fail to include information on adverse side effects of the painkillers. The agency's letter to Pfizer said the advertising campaign made "unsubstantiated effectiveness claims." A Pfizer spokeswoman said the Celebrex ads were no longer running, but she had no comment on the Bextra ads. She added that the company would work with the FDA to explore "appropriate" next steps.
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