intramuscular b12 injection needle size Do You Need a Prescription for Injections? syringe size for b12 injection

Signs of a severe allergic reaction (anaphylaxis) include: Skin rash, hives, or severe itching Swelling of the face, lips, tongue, or throat Difficulty breathing or wheezing A rapid heartbeat or a sudden drop in blood pressure If you ever develop swelling of the face or throat, trouble breathing, or other signs of a severe reaction after any injection, treat it as an emergency and call 911

Biweekly or Monthly Injections: For ongoing maintenance or prevention of deficiency

Because it inhibits bacterial growth, it's safer to use over time than regular sterile water

Additionally, vitamin B12 is involved in DNA synthesis, making it vital for cell division and the growth of new cells