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This coenzyme is essential for various biological functions
In addition, if you're one of the millions of Americans taking proton pump inhibitors (PPIs) that suppress stomach acid for conditions like acid reflux, you're going to be prone to vitamin B12 deficiency
Reported concerns may include headache, nausea, injection-site irritation, fatigue, or unpredictable responses depending on product quality and route of administration
Weekly Injection Schedule After the first phase, shots are given weekly for a few weeks
Medically reviewed by: Jayden Lee, PharmD, EMBA Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development, with a proven ability to bridge the gap between genomic research and practical patient outcomes
