Vitamin (cobalamin; methylcobalamin/cyanocobalamin injectable)
An essential vitamin given by injection to treat or prevent B12 deficiency and support energy and nerve function.
| Class / type | Vitamin (cobalamin; methylcobalamin/cyanocobalamin injectable) |
|---|---|
| Category | Metabolic & Weight |
| Status (Jul 2026) | FDA-approved |
Vitamin B12 is a required cofactor for methionine synthase and methylmalonyl-CoA mutase, enabling DNA synthesis, red blood cell formation, and myelin/nerve maintenance. Injection bypasses gut absorption problems that cause deficiency.
Treating and preventing B12 deficiency and pernicious anemia, malabsorption states, and deficiency-related neuropathy; widely used in wellness/energy injection settings.
Highly effective and safe for correcting deficiency; injections bypass absorption issues; low toxicity as a water-soluble vitamin; may improve energy and neurologic symptoms when deficient.
Little benefit in people who are not deficient; possible injection-site pain, rare allergic reactions, and infrequent low potassium when treating severe deficiency; 'energy boost' claims in non-deficient people are largely unsupported.
Deficient patients report clear improvement; wellness-clinic users report subjective energy boosts that are largely anecdotal in non-deficient people.
FDA-approved as an injectable prescription drug in the cyanocobalamin form for B12 deficiency; oral B12 is legal as a dietary supplement.