b12 injection safe in pregnancy Building a baby takes vitamin – here's why it matters are b12 injections safe during
Description
This may caused by the loss of gastric parietal cells in chronic atrophic gastritis or may result from wide surgical resection of stomach, or from rare hereditary causes of impaired synthesis of intrinsic factor

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This isnt a hard and fast rule, though, as you will see below

The usual Neurobion Forte Injection dosage depends on the severity of deficiency, nerve symptoms, age, and medical condition

Pernicious anemia , where the body cant absorb B12, is a main reason