The number of doses and how often you receive them will depend on how severe your deficiency is and how your body responds to treatment
Lipotropic injections , however, occupy a regulatory grey area
Kbe T, Witte AV, Schnelle A, et al
Collectively the EARs, RDAs, AIs, and ULs are referred to as dietary reference intakes (DRIs)
Finally, if the serum cobalamin concentration at the time of reevaluation is subnormal, further work-up is required to definitively diagnose the underlying disease process and cobalamin supplementation should be continued weekly or bi-weekly (for parenteral supplementation) or daily (for oral supplementation)
A reasonable titration schedule might look like this: Week 1: 200mcg once daily Week 2: 300mcg once daily Week 3 onward: 300-500mcg based on response and tolerance Optimizing injection technique Poor injection technique contributes to injection site reactions and potentially to other effects like nausea from anxiety around the process