vitamin b12 deficiency treatment injection dosage Dosages: Your GoodRx Guide Vitamin B12 Injection Dose: 7

If you have low B12 and are battling fatigue and/or depression, raising your B12 level back to normal can ease these symptoms and help you feel more energetic

Nausea (most common, especially during first 1 to 2 weeks of a new dose) Diarrhea or, just as often, constipation Vomiting (less common but more likely at 9 to 12 mg) Reduced appetite, food noise quieting down (this is the goal, not a side effect) Skin sensitivity (dysesthesia): tingling, prickly feeling, or sunburn-like skin

Athletes should be especially careful

Individual results vary significantly and are not guaranteed

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