size of needle for b12 injection what gauge to use Vitamin B12 Injections what gauge needle to use
Description
As a constituent in vitamin mix solution in in vitro gut simulator

For maintenance after correcting a deficiency, 500 to 1,000 mcg daily is plenty for most people
However, variability has been noted between studies, and long-term secretion patterns remain under continued investigation
Photosensitivity is an initial manifestation of pellagra