Possible side effects include mild irritation at the injection site, headaches, nausea, and others, depending on the specific peptide
Another class of gastric acid inhibitors known as histamine 2 (H 2 )-receptor antagonists (e.g., cimetidine, famotidine, and ranitidine), often used to treat peptic ulcer disease, has also been found to decrease the absorption of vitamin B 12 from food
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15 In contrast, falsely normal levels may be seen in patients with liver disease, myeloproliferative disorders, or renal disease
Safety and Side Effects of MIC B12 Injections When properly compounded and administered, MIC B12 injections side effects are rare and generally mild