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Anaphylactic Reaction to Cyanocobalamin: A Case Report
Muhammad Wajih Ullah1, Afshan Amray2, Aisha Qaseem3
1Cardiology, Mayo Clinic, Rochester, USA.
Cureus
|July 10, 2018
Summary
Anaphylactic reactions to vitamin B12 injections are rare but serious. This case report highlights the importance of vigilance when administering cyanocobalamin intramuscularly to patients with vitamin B12 deficiency.
Area of Science:
- Medicine
- Pharmacology
- Clinical Case Study
Background:
- Vitamin B12 is crucial for nerve and red blood cell health.
- Vitamin B12 deficiency is prevalent, particularly in the elderly, pregnant women, vegetarians, and those with renal or intestinal issues.
- Intramuscular cyanocobalamin is a common treatment, but anaphylaxis is a rare, serious side effect.
Observation:
- A 55-year-old woman experienced an anaphylactic reaction following her second intramuscular cyanocobalamin injection.
- Anaphylaxis is a rare but serious adverse event associated with parenteral vitamin B12 therapy.
Findings:
- This case underscores the potential for severe allergic reactions to cyanocobalamin.
- The study documents a specific instance of anaphylaxis after intramuscular vitamin B12 administration.
Implications:
- Healthcare providers must be aware of the rare risk of anaphylaxis with intramuscular cyanocobalamin.
- Vigilance is essential when administering vitamin B12 injections to monitor for potential life-threatening allergic reactions.
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