Oral absorption is considered too undependable to rely on in patients with pernicious anemia or other conditions resulting in malabsorption of vitamin B 12
However, it is recommended to take the injections as prescribed by the healthcare provider
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High-dose niacin therapy is normally contraindicated in individuals with active peptic ulcer disease or active liver disease
B12 is crucial in brain function, nerve tissue health, and red blood cell production
Research for new, safer and more effective cyanide antidotes continues (Class IV)