how long does it take vitamin b12 injection to work a Shot Last? How Quickly Does B12 Shot

But only to the extent that's medically appropriate for the visit

Symptoms of vitamin B12 deficiency Other various symptoms of B12 deficiency include: A swollen, inflamed tongue Dizziness Shortness of breath Pale skin Muscle weakness Numbness or tingling in hands and feet Tiredness (low energy) Weight loss Infertility Irregular or increased heartbeats Constipation Appetite loss Flatulence Low mood (depression) High blood pressure or very low blood pressure Vitamin B12, Vitamin B6 and Folate There is a strong interrelationship between vitamin B12, vitamin B6 and folate (also known as vitamin B9)

In fact, some observational studies suggest slightly lower fracture risk at high B12 blood levels

B12 (Cobalamin)