B03BA: Vitamin B12 (cyanocobalamin and analogues)

B03BA Vitamin B12 (cyanocobalamin and analogues) is part of the WHO ATC classification system and belongs to B Blood and Blood-forming Organs > B03 Antianemic Preparations > B03B Vitamin B12 and Folic Acid. This chemical subgroup page helps users identify more specific classifications and related active ingredients associated with this ATC code. It also includes 7 related active ingredients, supporting deeper navigation across ingredient-level pages. Use this page to explore the ATC hierarchy, review connected groups, and find relevant ingredient pages within Pharmassive.