Two errors appeared in: Monti J, Isaacson JH, Lashner B. A case of refractory diarrhea. Cleve Clin J Med 2008; 75:677–680. On page 679, the proprietary name of lansoprazole was incorrectly given as Prilosec and the proprietary name of omeprazole was incorrectly given as Prevacid. The proprietary names were reversed. The correct listing should have been: Lansoprazole (Prevacid) and omeprazole (Prilosec).