It is essential for the production of red blood cells, the maintenance of a healthy nervous system, and the synthesis of DNA
Symptoms of vitamin B12 deficiency can vary widely and may include fatigue, weakness, pale skin, shortness of breath, neurological symptoms such as numbness or tingling in the hands and feet, difficulty walking, memory loss, and mood changes
Certain medicationsincluding proton pump inhibitors, metformin, and some anticonvulsantsmay affect the absorption or metabolism of specific nutrients
The standard dosage is 1ml per injection, administered up to twice a week
That gap is worth planning around: the beyond-use window of a reconstituted solution (covered in the storage section) can be shorter than the drug supply lasts, especially for the 10 mg vial, so re-order and reconstitution-volume decisions should be made against the shorter of the two limits the stability window or the drug supply not just the drug supply alone
To do this, its best to discuss all supplements and medical conditions with your healthcare provider