b12 injection feeling tired worse after Injection: Answering concerns Why do I feel worse
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Heres how to integrate them into a comprehensive weight loss plan: 1

Or like some folks, you have a common genetic MTHFR enzyme deficiency, and will also benefit from the methyl-groups paired with our B-12, methlycobalamin
Individuals with pernicious anemia might start with 100 mcg injections daily or every other day, transitioning to a maintenance dose of 100 to 1000 mg monthly

Becton-Dickinson, general use sterile hypodermic
Archives of Gerontology and Geriatrics 2007;44(1):4959

(See PRECAUTIONS.) Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever the solution and container permit (see HOW SUPPLIED)