why are my b12 injections not working Vitamin Deficiency: Symptoms, Causes & Treatment If your B12 levels are
Description
The typical maintenance dose is 1,000 mcg administered IM once monthly
Subcutaneous B12 Injection Sites Subcutaneous B12 injections are less common yet still effective in treating B12 deficiencies

In humans, B12 deficiencies are seen more commonly in people consuming a vegetarian or vegan diet who are not supplementing enough B12

Patients with a history of kidney stones or renal impairment should use with caution

Smoking is a potential risk factor for regular use of high-dose vitamin B12 supplements as hepatic tumorigenesis may be promoted
Most public attention has been on fat loss, but separate animal work has also looked at joint and cartilage research