subcutaneous b12 injection Vitamin Sites: All You Need to Know Choosing the Right Needle and
Description
For less urgent concerns such as persistent injection site pain with spreading redness or unexpected symptoms, contact your GP or call NHS 111

Methylcobalamin is the active form of B12 and risk of toxicity from high doses is very low

Elevated levels of MNAM were detected in the urine (Li et al., 2018) and serum (Souto et al., 2005) demonstrated an upregulation of NNMT expression in the WAT of individuals with IR or T2D

Mura, Hajime & Takeda, Makoto et al., "Process for producing 5-aminotetrazole", published 1997-01-14, issued 1997-01-14 CrystEngComm
2018;33:e159e165
