Oral versus intramuscular administration of vitamin B12 for vitamin B12 deficiency in primary care: A pragmatic, randomized, multicenter, non-inferiority clinical trial
Summary Vitamin B 12 or cobalamin plays essential roles in folate metabolism and in the synthesis of the citric acid cycle intermediate, succinyl-CoA
Vitamin B12 injections deliver hydroxocobalamin directly into the muscle, bypassing absorption issues in the gut
Side Effects, Risks & Regulatory Notes Most people tolerate vitamin B12 injections well, but injection-site soreness, transient swelling, or redness can occur
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