Vitamin B12 helps with the following health functions: Improves brain function and neurological health Helps the formation of red blood cells and improves oxygen transportation throughout the body Helps the formation of DNA and RNA Prevents some types of anemia One key sign of a vitamin B12 deficiency is if youre excessively tired or weak
Vandewynckel, Y.-P
doi: 10.2337/dbi18-0024 51 DonnellyKLSmithCISchwarzenbergSJJessurunJBoldtMDParksEJ

Uses Infection Treatment: IV/IM antibiotics (ceftriaxone, vancomycin, piperacillin-tazobactam, meropenem) for sepsis, pneumonia, UTI, and hospital-acquired infections Oncology & Chemotherapy: Injectable anticancer agents (paclitaxel, doxorubicin, pemetrexed, pembrolizumab) Critical/Emergency Care: Epinephrine, atropine, naloxone, lidocaine, magnesium sulfate for resuscitation and life-threatening emergencies Anesthesia & Analgesia: Propofol, fentanyl, ketamine, morphine, dexmedetomidine for surgical, procedural, and ICU sedation/pain relief Chronic Disease Management: Insulin for diabetes, adalimumab & etanercept for autoimmune diseases, hormone injections (testosterone, estradiol, progesterone) Vitamins & Nutrition: Injectable B12, iron, magnesium, folic acid, total parenteral nutrition (TPN) Vaccines & Immunization: Influenza, COVID-19, hepatitis, tetanus, pneumococcal, rabies post-exposure Specialty Biologics: Monoclonal antibodies, growth factors, erythropoietin, biosimilars Types of Injectable Medications Intravenous (IV): Direct infusion into bloodstream for rapid onset (e.g., antibiotics, chemotherapy, anesthesia) Intramuscular (IM): Delivery into muscle for steady absorption (e.g., vaccines, depot antipsychotics) Subcutaneous (SubQ): Slow-release into fat layer (e.g., insulin, GLP-1 agonists, heparin, biologics) IV Push/Bolus vs
