can b12 injections cause upset stomach Vitamin shots: Uses, benefits, and side effects What Causes Vitamin B12 Deficiency?

Its not a medication, and its not approved for human or animal use outside of authorized studies 5-Amino-1MQ is a small-molecule research compound supplied for in-vitro investigation into metabolic and enzymatic signaling pathways, particularly through its activity as an inhibitor of nicotinamide N-methyltransferase (NNMT)

Oral supplements might not work, so injections or sublingual tablets are better

Liquid drops can be held under the tongue (sublingually), allowing a portion of the vitamin to be absorbed directly through the oral mucosa into the bloodstream, bypassing the digestive tract entirely

Endocrine Journal , 59(7), 529538

Serious adverse reactions are rare when injections are administered by a qualified provider following proper clinical evaluation

Inject Monday through Friday, rest on weekends