Davies M, Frch L, Jeppesen OK, Pakseresht A, Pedersen SD, Perreault L, et al
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
Forlaboratory research purposes only
After single IM administration at doses of 6, 30, or 150 g/kg, the T max values of each dose were 6.33, 8.67, and 8.17 min, respectively
This is from immediate barrier support, not collagen changes