Rapid Rx Quiz: Vitamin B12

Mary L. Windle, PharmD


October 31, 2022

In patients with Leber optic nerve atrophy, cyanocobalamin should be used cautiously because it can increase disease severity. Prudent use of cyanocobalamin is also recommended in renal failure because of the presence of an aluminum component. Cyanocobalamin has not been established to worsen disease severity of macular degeneration, major depressive disorder, and vestibular neuronitis.

Learn more about optic atrophy.

This Rapid Rx Quiz was excerpted and adapted from the Medscape articles Cyanocobalamin, Vitamin B Nutritional Disorders, Optic Atrophy, and Reticulocyte Count and Reticulocyte Hemoglobin Content.

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