b12 injection in vein Vitamin Injections: What You Need To Know 8 Reasons to Get a

If B12 levels were low to begin with, longer-term benefits like red blood cell production or nervous system support may take several weeks

Theyre often temporary but can cause discomfort

Inject subcutaneously into fatty tissue, typically the abdomen for better absorption

A simple blood test can show whether your levels are healthy, low, or somewhere in between

Those with gout, polycythemia vera, or specific vitamin deficiencies (particularly folic acid and iron) should undergo thorough medical evaluation [13]

In most patients, the effectiveness of hormone therapy starts working in 1 or 2 weeks after receiving treatment