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
For example, too much L-carnitine can lead to palpitations
2019;9 doi: 10.1038/s41598-019-51377-5
In models of hind limb ischemia, it accelerated blood flow recovery and increased vessel density, highlighting its pro-angiogenic properties
It is highly regarded for health and longevity
The B Vitamins are co-factors in the production of red blood cells, DNA synthesis as well as the production of the myelin sheath that surrounds the nerves