Vitamin B12 (cyanocobalamin)

What is Vitamin B12 (cyanocobalamin)?

CATEGORY: Supplements

Vitamin B-12 (cyanocobalamin) is used to treat pernicious anemia; dietary deficiencies due to malabsorption diseases, inadequate secretion of intrinsic factor, and inadequate utilization; for increased requirements due to pregnancy. It is available in oral, injectable and intranasal formulations.

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How do members experience Vitamin B12 (cyanocobalamin)?

Top 5 reported purposes & perceived effectiveness

Purpose Patients Evaluations Perceived Effectiveness
Vitamin B12 deficiency 436 88
General health 236 132
Fatigue 117 50
Pernicious anemia 60 8
Loss of energy 49 20

Common side effects

Side effect Patients Percentage
Diarrhea 2
Back pain 1
Bruising 1
Fatigue 1
Headaches 1
Heavy sensation 1

Side effect severity

Side effects as an overall problem
Severity Evaluations Percentage
Severe 2
Moderate 6
Mild 11
None 327

Member evaluations

thjuland

evaluated on May 11, 2016

  • Perceived effectiveness for loss of energy: Major
  • Side effects: None

rainydaygirl

evaluated on Nov 01, 2014

  • Perceived effectiveness for vitamin B12 deficiency: Major
  • Side effects: None

tigger13039

evaluated on Jul 01, 2015

  • Perceived effectiveness for anemia: None
  • Side effects: None
Learn more about our community’s experience with Vitamin B12 (cyanocobalamin)

What are people saying about Vitamin B12 (cyanocobalamin)?

4,017

4K+

members have reported taking Vitamin B12 (cyanocobalamin)

Join the conversation and connect with people who have taken Vitamin B12 (cyanocobalamin)
Last updated:

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