Causality was called very likely due to flavocoxid in three patients and possibly due to the agent in one patient, as that case was complicated by exposure to several other agents that may have caused the injury, including pregabalin (Lyrica), duloxetine (Cymbalta), and tizanidine (Zanaflex).

via Medical News: Liver Risk Found with Arthritis Supplement – in Rheumatology, Arthritis from MedPage Today.