text: Vioxx Faces Challenges from Insurers, Lawyers Merck  amp; Co. faces a dual threat from health insurers and patients #39; lawyers, after a US study suggested its Vioxx arthritis drug carries a greater risk than rival medicines.
inputs: Vioxx Faces Challenges from Insurers, Lawyers Merck  amp; Co. faces a dual threat from health insurers and patients #39; lawyers, after a US study suggested its Vioxx arthritis drug carries a greater risk than rival medicines.