Your personal injection schedule will be custom based on your initial B12 levels, the underlying cause of your deficiency, how well you respond to treatment, and ongoing blood test results
For the population most at risk, cancer patients who are likely to have numerous pre-existing comorbidities and may be immunosuppressed due to concomitant or prior treatment and nutritional issues related to their cancer, complications can include phlebitis, granuloma, and occlusion or life-threatening thromboembolic events
It reflects how long the opioid stays active, how quickly blood levels fall, and how fast the nervous system reacts when the drug is no longer there
Alternatively, 1000mcg can be given daily SC/IM for 2-7 days, followed by maintenance treatment
A doctor should be consulted before switching medications