Heffernan MA, Thorburn AW, Fam B, Summers R, Conway-Campbell B, Waters MJ, Ng FM
In rare instances, repeated injections of certain lipotropic components have led to inflammation or small nodules forming under the skin at the injection site
Why are two different molecular weights reported
Intrinsic factor, Medline Plus, Vitamin B12, Fact Sheet for Consumers, National Institutes of Health, Office of Dietary Supplements, Vitamin B12, Fact Sheet for Health Professionals, National Institutes of Health, Office of Dietary Supplements Pawlak R
Also in Japan, kidney dialysis patients with polyneuropathy received 5,000g methyl B12 shots, three times a week for six months