Translations:Cyanocobalamin/7/en

Cyanocobalamin is generally well tolerated. Minor side effects may include diarrhea, nausea, upset stomach, and itchiness.Serious side effects may include anaphylaxis, and low blood potassium resulting in heart failure. Use is not recommended in those who are allergic to cobalt or have Leber's disease. No overdosage or toxicity has been reported. It is less preferred than hydroxocobalamin for treating vitamin B
₁₂ deficiency because it has slightly lower bioavailability. Some study have shown that it has an antihypotensive effect.