does sublingual b12 work as well as injections Efficacy of different routes of vitamin supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis 9 Best Vitamin B12 Supplements

This is particularly beneficial for individuals who suffer from gastrointestinal issues that cause them to have difficulty absorbing food nutrients

Subcutaneous injection bypasses first-pass hepatic metabolism, delivering more active peptide to target tissues

If you do not have enough red blood cells, your body will not function properly due to a lack of oxygen in your organs and tissue

In summary, B12 IV dosing needs a personalized approach

Weekly Administration During Intermediate Phase After the first phase, injections are given weekly for four to eight weeks

Severe liver dysfunction, as the liver plays a key role in metabolizing lipotropic compounds