b12 injection dose mcg Cyanocobalamin (B12) 1000 mcg/mL, Multiple Vial 1 mL, 25/Tray Methylcobalamin 2500 Mcg Vitamin B12
Description
[11] It is less preferred than hydroxocobalamin for treating vitamin B 12 deficiency because it has a slightly lower bioavailability

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On the other hand, folic acid supplement can mask the symptoms of B12 insufficiency and may delay its diagnosis and treatment

A complete B12 and nutrient assessment may also be recommended, including laboratory testing
A blood test is the only way to confirm it