Following the CDC guidance of a 28-day refrigerated-use window, that works out to three 80 mg vials at the low 1.6 mg dose, three vials at the standard 3.2 mg dose, or four vials at the elevated 4.8 mg dose
If simple measures do not provide relief within two to three weeks, further medical review is appropriate to exclude other causes and consider alternative supplementation routes
B12 is vital for proper function and development of the brain, bone density, vision, and more
190 Given the positive outcomes with L-carnitine and/or acetyl-L-carnitine, it has been included in combination with antioxidants and other nutrients
I have used this particular pharmacy several times to buy injectable B12, you do not need a prescrition for the B12 or needles