b12 injection sub q or im Injections at Home - Safety Guide for Self-Administration Best Vitamin B12 Injection Sites:

Repeat cycles

Folate testing is rarely indicated but may be available via consultation with the laboratory medicine physician or scientist

If the injection is given IV (slowly), there may be a brief sensation of warmth or a mild flushing during the infusion, owing to the niacinamide component

And, indeed, when you put all the observational studies together, we find there is no signicant correlation between the levels of B12 in the blood and lung cancer, whether or not you smoked

your body keeps what it needs and excretes the excess through your urine

It is also particularly valuable for patients who may have issues with their digestive system that may make other forms of increasing their B12 levels, such as pills and food, less effective