Risk of Anemia With Metformin Use in Type 2 Diabetes: A MASTERMIND Study.
Louise A DonnellyJohn M DennisRuth L ColemanNaveed SattarAndrew T HattersleyRury R HolmanEwan R PearsonPublished in: Diabetes care (2020)
Metformin use is associated with early risk of anemia in individuals with type 2 diabetes, a finding consistent across two RCTs and replicated in one real-world study. The mechanism for this early fall in hemoglobin is uncertain, but given the time course, is unlikely to be due to vitamin B12 deficiency alone.