Once your B12 levels are stabilized and your symptoms improve, the team will typically transition you to a maintenance schedule
Incorporate sources of vitamin B12 into your diet, such as meat, dairy, eggs, and fortified foods, to maintain optimal levels
Documented side effects are usually mild to moderate: Injection-site pain, redness, or bruising Flushing Increased heart rate Nausea or gastrointestinal upset Headache Urinary changes or a fishy body odor at higher choline doses Because these are compounded products, sterile technique, pharmacy sourcing, and formulation verification matter
However, some rare side effects of too much vitamin B12 can include: Headache Weakness Nausea Diarrhea Tingling sensations in the hands and feet Allergic reactions or skin rash (uncommon) When To Seek Medical Advice Risk of vitamin B12 deficiency: Groups at a higher risk of vitamin B12 deficiency include older adults, people who only eat plant-based foods (vegans and vegetarians), and those with certain chronic conditions (gastrointestinal disorders that can affect vitamin absorption)
This is why my clinic direction is to go straight to a blood collection centre after leaving the first consultation
Preclinical characterization of a novel investigational monoclonal antibody CM313 with potent CD38-positive cell killing activity