do i need b12 injections The Shot: What Every Human Needs to Know About Injectable Vitamin B12 What Are B12 Injections? And

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Sublingual administration, which bypasses the gastrointestinal tract, appears to be equally effective as IM injections while being less invasive and more cost-efficientparticularly in patients with atrophic gastritis, post-gastrectomy status, or conditions that impair intrinsic factor-mediated absorption, where long-term intervention is often required

10 A number of studies have investigated sublingual administration, and all found sublingual B12 to be effective in normalising B12 status in deficient adults, 11,12,13,14 infants 15 and children

So, if you consume an alcoholic drink every hour, your BAC levels will continue to increase