IV zinc may be considered when oral intake is not tolerated, absorption is impaired, or short-term repletion is clinically indicated.
after an intramuscular injection of 1,000 g of cyanoB 12 , about 150 g is ultimately retained in the body 15 Most vitamin B 12 -deficient individuals in the UK and other countries are treated with intramuscular vitamin B 12 , and vitamin B 12 replacement has been traditionally administered intramuscularly
Treatment of tanned skin increases the complication rate and should be avoided
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PMID: 36864321 Int J Mol Sci 2022 Dec 30;24(1):650
Peripheral neuropathy, burning or tingling nerve pain, chronic inflammation, diabetes-related nerve issues