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These extremely rare side effects include: Reactive thrombocytosis during the first week of use in megaloblastic anaemia Hypersensitivity reactions including: rash, itching, exanthema, antibodies to HYDR0XOCOBALAMIN-transcobalamin II Anaphylaxis Hypokalaemia Headache, paraesthesia, tremor Irregular heartbeat (arrhythmias secondary to hypokalaemia) Nausea Vomiting Diarrhoea Fever, chills, hot flushes, dizziness, malaise, pain and / or swelling at the injection site Acne Abnormal colouration of the urine (chromaturia) B12 injections work quickly
Physiological relevance was validated in a human cohort (n = 81
The injections may also lessen the appearance of acne scars and dark spots, leading to a more even tone, though more research is needed
Where indicated, cells were labeled for 5 min with LysoTracker (deep red) before analysis by TIRFM
You get an outside lab retest and a dated certificate on every single lot
PMID: 11334915 Laajoki LG et al
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