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With a B12 deficiency, the body may produce fragile red blood cells that break down more easily, releasing a yellow pigment called bilirubin
For any immediate trouble breathing or swelling of the lips/tongue, call 911 or go to the nearest ER right away
Gastrointestinal symptoms (more common with oral preparations): Mild nausea or upset stomach Diarrhoea (typically with very high doses) Other effects: Headache, particularly when treatment is first initiated Dizziness or light-headedness Skin reactions such as mild rash or itching Temporary reddish discolouration of urine (chromaturia) after hydroxocobalamin injections, which is harmless It is important to note that many symptoms attributed to B12 supplementation may actually represent the body's response to correcting a deficiency
Discard any vial showing signs of contamination, damage, or after 28 days of first use, whichever comes first
