Side effects and safety B12 injections are very safe
They found that, as expected, 5-amino-1MQ altered the levels of proteins that were different from those seen with exercise training alone
North Texas Integrated Healthcare
doi: 10.1111/j.1526-4610.2004.04029.x Summary Keywords migraine, supplements, nutrient deficiency, narrative review Citation Hajhashemy Z, Golpour-Hamedani S, Eshaghian N, Sadeghi O, Khorvash F and Askari G (2024) Practical supplements for prevention and management of migraine attacks: a narrative review
If supplementation is responsible, your doctor may recommend reducing or stopping non-essential B12 intake, with repeat testing after an appropriate interval (typically 2-3 months, or longer if you've had recent injections or have kidney disease)
Provider Guidance and Treatment Safety Considerations Before starting MIC B12 injections, discuss your baseline B12 status, metabolic goals, and injection frequency with your healthcare provider