As the However, while risks of severe toxicity are low, some side effects are still possible, such as: temporary symptoms, such as itching, swelling, or diarrhea allergic reaction damage from the injection hypokalemia, or low potassium levels infection negative interactions with certain medications, such as: metformin (Fortamet, Glucophage, Riomet) medications to reduce gastric acid, such as proton pump inhibitors or H2 receptor antagonists Always talk with a doctor before using vitamin B12 supplements
The NHS uses B12 injections for one thing: treating a proven vitamin B12 deficiency that the gut cannot fix on its own
Once-weekly formulations such as semaglutide (Ozempic, Wegovy) and dulaglutide (Trulicity) can be administered at any time of day, with or without meals, according to their SmPCs
Different copper peptide variants work better through different administration routes