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    Vitamin B12 (Methylcobalamin) texture
    Vitamin B12 (Methylcobalamin) product photography

    B-vitamin

    Vitamin B12 (Methylcobalamin)

    Deep pink to red solution or troche

    B12 deficiency
    energy
    nerve function

    Typical Strength

    1,000–10,000 mcg/unit

    Formulations

    0 compounds

    Formula

    C₆₃H₉₁CoN₁₃O₁₄P

    Mol. Weight

    1344.38 g/mol

    oral capsulesublingual tabletnasal spray

    How It Works

    Mechanism of action

    Methylcobalamin is the bioactive B12 form, a cofactor for methionine synthase and methylation reactions essential to nerve myelination and red blood cell formation. Compounded as troches and sublingual forms for patients with absorption issues.

    Did you know?

    Vitamin B12 is the only vitamin that contains a metal atom — cobalt — which gives its solutions their characteristic deep red color.

    What compounding can change

    When Vitamin B12 (Methylcobalamin) is compounded for one patient, your prescriber can choose the concentration, combine it with other ingredients, and pick the base. Commercial products come in fixed strengths and bases.

    Safety Considerations

    preferred methylated form
    Browse all ingredients

    Please note: Compounded medications require a prescription from a licensed prescriber for an individual patient. Compounded medications are not FDA-approved. The FDA does not review them for safety, effectiveness or quality. A compounded medication is not the same as, or a generic version of, any FDA-approved drug. This page is general information, not medical advice. Your prescriber decides whether a treatment is right for you and sets the final ingredients, strength and dosage form.