Ultra-high IV doses of methyl B12 (25mg) were shown safe and potentially effective for patients with peripheral neuropathy and chronic axonal degeneration
Some individuals may notice improvements within a few days to a week after receiving an injection or IV infusion
K., Sheppard, D., & Chapman, H
This methodological heterogeneity complicates both interstudy comparisons and the development of clinical guidelines
In people whose vitamin B12 deficiency is related to overgrowth of intestinal bacteria, treatment with oral antibiotics, such as tetracycline (sold under several brand names), may stop bacterial overgrowth and allow the absorption of vitamin B12 to return to normal
While some epidemiological studies have raised questions about growth hormone and cancer risk, the evidence remains inconclusive after decades of clinical use