In rare cases, more significant concerns may occur, which is why consultation and proper guidance are important
Contraindications and Precautions While B12 injections are safe for most, there are some exceptions: Knowing about these side effects and precautions can help avoid risks
They are not intended for human or animal consumption, clinical use, diagnostic use or therapeutic application
Acid-reducing medications Medications commonly prescribed for heartburn, GERD, acid reflux and peptic ulcers, such as proton pump inhibitors like Prilosec, Prevacid and Nexium, or H2 (histamine2) receptor antagonists like Pepcid and Zantac, suppress the secretion of stomach acids, also blocking the secretion of intrinsic factor
When your body does absorb B12, it takes time for the vitamin to be distributed throughout the body and more time for the body to use it in a way that is noticeable