Observed effects in human trials Reported adverse events across the IV and oral trials included headache, fatigue, dizziness, nasopharyngitis, diarrhea, flatulence, increased appetite, nausea, and back pain
One common way to treat low B12 levels is through vitamin B12 injections
You have undergone gastrointestinal or weight loss surgery
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Frequently Asked Questions Methylcobalamin injections may be prescribed during pregnancy if there is a confirmed Vitamin B12 deficiency, as maintaining adequate B12 levels is essential for fetal development
In a 2022 study, patients regained two-thirds of their prior weight loss after discontinuing the medication