proper site for b12 injection Vitamin Sites: All You Need to Know How to self-inject intramuscular vitamin

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

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

This makes it difficult to overdose on vitamin B12, but it is still important to follow dosage recommendations from the healthcare provider to avoid potential side effects

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