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Helpful tip: Record each injection location in your phone, calendar, or treatment log
After 14 days of treatment, the mice were euthanized via cardiac injection of sodium pentobarbitone given at 35 mg/kg
How to Administer a B12 injection to Yourself There are two ways to self-inject vitamin B12: Subcutaneously, or just below the skin, and intramuscularly, which goes directly into the muscle, says Foxx
Some people do not absorb B12 efficiently due to age, gastrointestinal issues, or insufficient intrinsic factor, a protein required for B12 absorption
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