Merck & Co. and the Food and Drug Administration in June expanded the possible adverse reactions for Gardasil, the widely advertised cervical cancer vaccine for girls and young women, to include joint and muscle pain, fatigue, physical weakness and general malaise.
The new warning - added to the package insert and to an information sheet given to patients - was approved June 12 by the FDA, which states in documents on its Web site that the updated information "reflect reports received" after the vaccine went on the market in 2006.
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