Why this belongs in a clinic Every risk above is reduced by the same things: the right needle, a clean field, correct site selection, a steady pace, and a single-use needle each time
Vitamin B12 also may be involved in maintaining sulfhydryl (SH) groups in the reduced form required by many SH-activated enzyme systems
High-dose therapy may also cause a brief increase in blood pressure, though this usually returns to baseline within a few hours
The most widespread indicators include unexplained muscle weakness, a constantly sore or swollen tongue, chronic brain fog, tingling sensations or pins and needles in your hands and feet, persistent mood shifts, and a pale or yellowish skin tint
Injecting B12 into fat means placing the vitamin into the subcutaneous layer, the soft fatty tissue that sits between your skin and your muscle
For IM injections, a 22 to 25 gauge needle is typically used