Even though the vitamin is found in many foods, B12 insufficiency and deficiency are relatively common
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
For instance, rotating injection sites can minimize local reactions, while staying well-hydrated can reduce headaches and dizziness
Possible Side Effects: While side effects are generally rare, some individuals may experience mild side effects, such as temporary discomfort at the injection site, warmth or flushing sensations, or a transient feeling of lightheadedness