doi: 10.1111/j.1743-6109.2009.01454.x
It is usually administered in a healthcare setting, such as Neighborhood Medical Center, and the injection is typically given in the muscle (intramuscular, IM) or under the skin (subcutaneously)
In addition to B12, our shots include Vitamin B1 (thiamine), Vitamin B2 (riboflavin), Vitamin C (ascorbic acid), L-carnitine, lidocaine, and the lipotropics methionine, inositol, and choline
During that time I was just rotting in bed
In compliance with the recommendations for public health, anyone with a cough, fever, loss of taste/or smell, flu-like symptoms
While daily use is possible, most protocols recommend 3-5 times weekly to reduce potential tolerance development