Every entry uses the 10 mg/mL concentration because it offers the cleanest math across all vial sizes and maintains consistency whether you switch between a 10 mg and 30 mg vial next month

and patients with pernicious anemia who have optic neuropathy COBALAMIN (Vitamin B12) Deficiency Causes Vegetarians (dietary deficiency) Older adults: atrophic gastritis affects 10% 30% and leads to decrease in hydrochloric acid secretion in the stomach and decreased absorption of Vitamin B12 The liver can store up to six years worth of Vitamin B12 so deficiencies are rare Effects of deficiency Megaloblastic anaemia (pernicious anaemia) Progressive demyelination of nerve cells Elevation in levels of circulating homocysteine that leads to production of defective collagen and elastin with a negative impact on arteries, bone and skin Deep vein thrombosis is associated with homocysteinemia that causes the activation of the intrinsic coagulation cascade Symptoms include fatigue, weakness, constipation, loss of appetite and weight loss Numbness, tingling of the feet imbalance, depression, confusion, dementia, poor memory and glossitis
doi: 10.2337/diabetes.54.8.2390
Better Mental Health: Proper levels of vitamin B12 are essential for maintaining healthy brain functions and preventing cognitive decline
If an underlying condition is responsible (liver disease, kidney disease, myeloproliferative disorder, or cancer), treating the underlying condition is the priority