CHICAGO, Feb. 19 (UPI) -- A new study with mice concludes women using the osteoporosis drug Nolvadex need to be careful if they previously have taken the cancer-fighting drug tamoxifen. Northwestern University research released on Tuesday said giving raloxifene or Nolvadex after a five-year course of tamoxifen may cause an increase in cancers of the lining of the uterus.
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