Summary: Excessive vitamin B12 intake rarely causes toxicity, but very high levels from supplements or injections may be associated with skin reactions such as acne-like eruptions, though serious adverse effects remain exceptionally uncommon
Adverse events linked to Ozempic Gastroparesis, or stomach paralysis, which prevents digestion from occurring by paralyzing the nerves and muscles along the digestive tract Kidney failure and acute kidney injury Bowel and intestinal obstruction Insulin metabolism disruption, including damage to the gut-brain axis Thyroid cancer, specifically medullary thyroid carcinoma Diarrhea and nausea Ileus Pancreatitis Suicidal thoughts or ideation Gastroenteritis Muscle loss Ozempic Face: a new term for Ozempic-induced facial wasting, i.e

Contact your GP for B12 testing if you have: Symptoms suggesting deficiency (persistent fatigue, pins and needles, memory problems, glossitis) Risk factors for deficiency (vegan diet, gastric surgery, long-term metformin or proton pump inhibitor use) [1] [4] Concerns about whether your current supplementation dose is appropriate Underlying conditions affecting B12 metabolism (kidney disease, liver disease) Unexplained high B12 levels on a blood test when not taking supplements Routine monitoring is essential for patients receiving therapeutic B12 injections
Eur J Obstet Gynecol Reprod Biol 126:1619