According to NICE Clinical Knowledge Summaries, once B12 deficiency is adequately treated and symptoms resolve, routine monitoring of serum B12 levels is generally unnecessary, as clinical response is the primary indicator of treatment effectiveness
After the initial series, maintenance injections may be prescribed on a regular schedule, such as monthly or every few months, to sustain optimal B12 levels
The classification of a medicine is based on the level of health professional input needed to diagnose and manage the conditions for which the product is used
This combination led to a 29.3% reduction in fat mass from baseline, which was 10-fold greater than the effect of the diet alone
(the FDA has exempted many vitamins from formal categorization), but they are regarded as safe as part of a normal diet and necessary for fetal growth