In rare situations, B12 shots itching rash anaphylaxis, a life threatening condition that can cause a fast heartbeat and difficulty breathing Other side effects that can occur include: shortness of breath, fast weight gain, and swelling congestive heart failure, the inability of the heart to adequately pump blood pulmonary edema, the buildup of fluid in the lungs peripheral vascular thrombosis, the obstruction of a vein with a blood clot hypokalemia, low potassium levels that can cause irregular heartbeats and muscle weakness fever tingling, numbness, and joint pain swollen tongue polycythemia, an increase in the red blood cell mass Additionally, B12 B12 shots are not necessary for weight loss
[DOI] [PubMed] [Google Scholar] Meader 2014 Meader N, King K, Llewellyn A, Norman G, Brown J, Rodgers M, et al
Vitamin B12 is key for the bodys nerve function and blood cell production
Orders placed before the daily cutoff are typically shipped the same business day
We performed a frequentist network meta-analysis to measure network estimates for the relative outcomes
