Methylcobalamin (Mecobalamin)

Methylcobalamin is an active, naturally occurring coenzyme form of Vitamin B12. It plays a critical role in transmethylation micro-reactions, nucleic acid synthesis, and the maintenance of the myelin sheath in the nervous system.

Dosage by Body Weight

Adult dose is typically 500 mcg to 1500 mcg daily in divided doses. Pediatric dosing is highly specific and must be determined by a pediatrician based on clinical deficiency levels.

  1. Body Weight
    Below 5 kg
    Dose
    Not routine
    Frequency
    Use only if prescribed
    Tracking Notes
    Safety and efficacy in neonates are not fully established. Consult a pediatrician.
  2. Body Weight
    5-7 kg
    Dose
    50 mcg to 100 mcg
    Frequency
    Once daily
    Tracking Notes
    Administer only if diagnosed with nutritional deficiency or metabolic disorder.
  3. Body Weight
    8-10 kg
    Dose
    100 mcg to 150 mcg
    Frequency
    Once daily
    Tracking Notes
    To be given as oral drops or syrup under medical supervision.
  4. Body Weight
    11-15 kg
    Dose
    150 mcg to 250 mcg
    Frequency
    Once daily
    Tracking Notes
    Adjust dosage based on serum B12 levels.
  5. Body Weight
    16-20 kg
    Dose
    250 mcg to 500 mcg
    Frequency
    Once daily
    Tracking Notes
    Tablet (dispersible) or syrup formulation may be used.

Formulation

TabletCapsuleInjectionSyrup

Purpose

Used to treat Vitamin B12 deficiency, peripheral neuropathy, diabetic neuropathy, and megaloblastic anemia.

Generic Name

Methylcobalamin

Branded Drug Names

Methylcobalamin (Mecobalamin) is listed as a generic drug name. Common branded medicines that may contain the same active ingredient include:

Scheduled Drug

No. This medicine is generally not treated as a scheduled/prescription-only drug in common consumer references, but local rules may vary.

Alternatives

Disclaimer: This information is for educational purposes only. WHO references and weight bands are simplified for tracking and must not replace medical advice. Always consult with a healthcare professional before starting or changing any medication.