CNNMoney.com reports that drug manufacturer Wyeth faces yet another lawsuit, with still thousands of unresolved lawsuits to go, citing its drug Prempro as a cause of breast cancer. Plaintiff Jenny Nelson, 61, says that five years of taking Prempro to treat her menopause caused her breast cancer. Nelson was forced to have a double mastectomy as treatment. Jon LeCroy, analyst for Natexis Bleichroeder, says that Prempro remains on the market because "the FDA believes that they're safe enough for the market" and suggests that the drug's links to breast cancer are not "clear cut or severe."