why do i need vitamin b12 injections shot Best Vitamin B12 Injection Site:

For patients who are deficient in B12 or borderline low, correcting that deficiency may help improve fatigue, sluggishness, or weakness

According to a study published in Frontiers in Pharmacology, intramuscular administration of vitamin B12 produces a faster increase in serum levels compared to oral routes, although both methods are effective in restoring normal cobalamin levels in patients with deficiency

Sore or swollen tongue: Inflammation or tenderness of the tongue

Technique : The needle is inserted at a 45-degree angle to the skin

It is possible for needles to become infected or contaminated after being reused