ATC Group: B03BA03 Hydroxocobalamin

The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.

Position of B03BA03 in the ATC hierarchy

Level	Code	Title
1	B	Blood and blood forming organs
2	B03	Antianemic preparations
3	B03B	Vitamin B12 and folic acid
4	B03BA	Vitamin B12 (cyanocobalamin and analogues)
5	B03BA03	Hydroxocobalamin

Defined daily dose

The DDD is the assumed average maintenance dose per day for a drug used for its main indication in adults. The DDD is a unit of measurement and does not necessarily reflect the recommended or Prescribed Daily Dose. Therapeutic doses for individual patients and patient groups will often differ from the DDD as they will be based on individual characteristics (such as age, weight, ethnic differences, type and severity of disease) and pharmacokinetic considerations.

Route	Amount
PAREN - Parenteral	0.02 mg

Active ingredients in B03BA03

Active Ingredient	Description
Vitamin B12	Hydroxocobalamin is used in the treatment and prevention of Vitamin B12 deficiency. For adults, the daily requirement of Vitamin B12 is probably about 1 to 2 micrograms and this amount is present in most normal diets. However, Vitamin B12 only occurs in animal products, not in vegetables, and therefore strict vegetarian or vegan diets that exclude dairy products may provide an inadequate amount, although a deficiency may not be apparent for many years.
Vitamin B12a	Hydroxocobalamin is a cyanide antidote. Its action in the treatment of cyanide poisoning is based on its ability to bind cyanide ions. Each hydroxocobalamin molecule can bind one cyanide ion by substituting it for the hydroxo ligand linked to the trivalent cobalt ion, to form cyanocobalamin, which is then excreted in the urine.