Cyanocobalamin (Vitamin B12)is used to treatpernicious anemia, a condition caused byVitamin B12 deficiencydue to the body’s inability to absorb it properly.
Pernicious anemiais an autoimmune disorder where the stomach does not produceintrinsic factor, a protein needed for Vitamin B12 absorption.
Symptoms includefatigue, weakness, neurological issues (numbness, tingling), and megaloblastic anemia.
Cyanocobalamin is given viaIM injection or high-dose oral supplementation.
(A) Pernicious anemia✅Correct – Cyanocobalamin is the primary treatment.
(B) Alcohol withdrawal❌Incorrect – Thiamine (Vitamin B1) is used for alcohol withdrawal, not cyanocobalamin.
(C) Hypothyroidism❌Incorrect – Treated withlevothyroxine (Synthroid), not Vitamin B12.
(D) Narrow-angle glaucoma❌Incorrect – Treated withtimolol, acetazolamide, or surgery, not cyanocobalamin.
Cyanocobalamin Prescribing Information (NIH): https://medlineplus.gov/druginfo/meds/a607038.html
PTCB Exam Content Outline – Disease States & Medications
Key Facts About Cyanocobalamin & Pernicious Anemia:Analysis of Answer Choices:References for Pharmacy Technicians:
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