proper site for b12 injection Vitamin Sites: All You Need to Know Common Mistakes in B12 Injections

Certain medications The following drugs can reduce levels of vitamin B12 in your body: Antibiotics -- long-term use can lower vitamin B levels generally Anti-seizure drugs Chemotherapy medicines, especially methotrexate Drugs used to reduce stomach acid, like H2 blockers (Pepcid AC, Tagamet, Zantac) and proton pump inhibitors (Nexium, Prevacid, Prilosec) Metformin (Glucophage) -- taken for diabetes Colchicine -- taken for gout Some cholesterol-lowering medications Other causes You're over 65

Chemotherapy, autoimmune conditions, alcohol use, certain medications, toxins, and other health issues can also play a role

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It helps maintain the health of nerve cells including those needed for neurotransmitter signaling and helps form the protective covering of nerves, called the cells myelin sheath