A group representing companies that produce generic versions of Eli Lilly's (LLY.US) weight loss drug, the Outsourcing Facilities Association, has filed a lawsuit against the U.S. Food and Drug Administration (FDA) in a federal court in Texas, alleging that the FDA's decision to remove the drug from the list of drugs in shortage was "arbitrary, capricious and unlawful." The plaintiffs argue that the FDA's decision deprived patients of access to important medications and are seeking a court order to vacate or modify the FDA's decision.