It may be time to consider a Vitamin B12 injection if you are experiencing common symptoms, including: Weakness, fatigue, or lightheadedness Heart palpitations Pale skin Mouth or tongue soreness or bleeding Constipation, diarrhea, loss of appetite, or gas Numbness or tingling, muscle weakness, and problems walking Vision loss Possible depression, memory loss, or behavioral changes Anemia Intestinal disorders and weight loss Vitamin B12 injections can potentially treat anyone experiencing symptoms associated with a deficiency
Systemic Inflammatory Response Shock-like Reaction A recent (2025) case report described a patient who developed full-blown systemic inflammatory response syndrome (SIRS) after a high-dose, unregulated glutathione infusion for cosmetic skin-lightening
References Lau DCW, Erichsen L, Francisco AM, et al
Marcelis M, Suckling J, Woodruff P, Hofman P, Bullmore E, van Os J (2003)