are b12 injections subcutaneous or intramuscular How to self-inject vitamin - Overview B12 Injections at Home -

Though it differs a bit from one person to another, the effects of B12 vitamins usually last around 48 hours to 72 hours after the initial injection

I also have fibromyalgia so it is really hard to figure what is causing what with me. I really would like to know if B12 at 4000 can be harmful or be a sign of something being wrong

Following a vegetarian or vegan diet brings many benefits, but some nutrientssuch as vitamin B12are only contained in meat and other animal products, as well as certain fortified foods like yeast extract or breakfast cereals

Route: Intramuscular (IM) or subcutaneous (SubQ)

I have taken semaglutide , it did the job but tirzepatide seems to work better for me