vitamin b12 injection how long to take effect Biochemical mechanism of action of (cobalamin). Modified Vitamin Deficiency Injectable System -

To reconstitute the lyophilized powder, gently introduce sterile bacteriostatic water or an approved cosmetic serum base into the vial

Red or purple chromaturia is a side effect of hydroxocobalamin, typically resolving over several weeks.2 Additional causes of red urine include blood (e.g., traumatic catheterization, malignancy, infection), dietary ingestion (e.g., beets), and medications (e.g., rifampin, phenothiazines).3 Although benign and not warranting further evaluation by itself, hydroxocobalamin-induced discolouration of body fluids may interfere with colorimetric sensors

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Without enough B12, these cells can become large and misshapen (megaloblastic anaemia), reducing oxygen flow to your brain and muscles, causing fatigue and weakness