injecting b12 into a vein Vitamin Injections: Hot Shots? Full Guide · PA Relief Best Vitamin B12 Injection Sites
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1948 Sep;33(9):1123-32

However, the risk of bone fractures may be increased by supplements containing 25 mcg or more daily, according to some research
If unsure, consulting your doctor for a B-12 level check via a blood test is advisable

Even though I havent tried any other prophylactic meds yet, she said I should go straight for it if the supplements dont work
It takes weeks for B12 to build up in your body." The first time, or even the second time, a person receives B12 shots, you might not notice any difference
