can b12 be injected The Shot: What Every Human Needs to Know About Injectable Vitamin B12 Vitamin B12 Injection Sites: All
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If you're using a multi-dose vial, follow the storage instructions on the label, but generally, room temperature and away from sunlight is the way to go

Other small studies have also found elevated homocysteine in migraine patients, likely reflecting B12 deficiency as well

Squires J, Bricker D

Other indications include malabsorption disorders (such as Crohn's disease or coeliac disease), following gastric surgery, strict vegan diets without supplementation, and certain medications that interfere with B12 absorption

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