Mescalbean (Sophora secundiflora) toxicity is reported in a dog. Mescalbean toxicity causes intolerance to exercise, muscle rigidity and collapse upon exercise, with a rapid recovery upon resting in dogs. Mescalbean toxicity is a rare cause of the periodic weakness/syncope class of diseases in dogs in areas of the habitat of Sophora secundiflora.
Department of Small Animal Medicine and Surgery, Texas Veterinary Medical Center, College of Veterinary Medicine, Texas A&M University, College Station 77843-4474, USA.