For an elderly male with a B12 level of 176 on metformin, is oral or injectable B12 replacement more effective?
Abstract
Both oral high-dose and intramuscular B12 supplementation are effective strategies for addressing vitamin B12 deficiency, even when induced by metformin. The choice should be guided by patient preference and clinical context.
Fields of Study & Subjects
Folate and B Vitamins Research
Porphyrin Metabolism and Disorders
Hematological disorders and diagnostics
Publication details
- Journal / source
- Zenodo (CERN European Organization for Nuclear Research)
- Publication date
- 5 March 2026
- Language
- EN