b12 injection diarrhea Can Vitamin Cause Diarrhoea? Side Effects Explained Oral vs. Intramuscular Vitamin B12
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Supplied alone or within a vitamin B complex

Cyanocobalamin injection: Prescription & dosage information

Genetic Factors: Some individuals have MTHFR gene mutations, making it incredibly difficult to process synthetic B12

The standard dosage for severe deficiency typically starts with 1 mg daily injections, transitioning to weekly and then monthly maintenance doses
