by Eric Christianson | Jan 14, 2026 | Hematology and Immunology Case Studies
In this case scenario, we discuss the “double trouble” of using PPIs and metformin and their effects on vitamin B12. Mrs. J is a 68-year-old woman with type 2 diabetes and gastroesophageal reflux disease (GERD). She has been taking metformin 1,000 mg twice...
