Clinical guidance for intramuscular injections points to a 22 to 25 gauge needle, given at a 90-degree angle, with the length chosen so it reaches muscle without going too deep
B12 injections are the standard NHS treatment for proven vitamin B12 deficiency, not a routine wellness boost
Preparing for an Injection Describe any symptoms you've been experiencing to your doctor, especially things like mental fogginess and overall fatigue, so your doctor can make an assessment
Vitamin B12 can be injected just under the skin, or directly into the muscle
Children presenting neurological signs or symptoms, those unable to take oral medication, individuals with known malabsorption syndromes, infants under 6 months old, and patients using medications that may interfere with vitamin B12 absorption are typically treated with a parenteral protocol (1)