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Vitamin B12 injections are often used as a treatment for people with vitamin B12 deficiency, a condition that can lead to a range of health problems, including fatigue, weakness, numbness and tingling in the extremities, and difficulty concentrating
For women, it may range from 5,000 to 10,000 IU with a proper injection schedule, and for men, the dosage may range from 1,000 to 4,000 IU (two to three times per week) for several weeks or months
The survey also found that those who self-injected were more likely to report feeling unsafe in primary care and, at times, they felt that they were not treated with dignity and respect
PMID: 29986520 Seiwerth, S., et al
