b12 injections dose Shots at Home: How, Where & How Often to Inject Yourself Vitamin B12 Injection Dose for

The normal dose of B12 injection depends on how bad the deficiency is

Mild side effects and potential risks, which should be referred to a doctor if they persist or worsen, include: pain, redness, or itching at the site of the injection mild diarrhea swelling sensation in the body More serious side effects, which require immediate medical attention, include: muscle cramps irregular heartbeat unusual weakness or tiredness swelling of the ankles or feet Severe reactions are very rare but require emergency intervention

The International Journal of Neuroscience 71 (14): 9399

Testing costs remain modest and provide valuable guidance for adjusting supplementation