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) What should you not do after a B12 shot
However, many people can neither absorb nor use B12 because of issues in the complex absorption and metabolism of B12
Boost Your Energy and Well-Being With B12 Injections Vitamin B12 injections could be the solution you need if you feel chronically tired, sluggish, or mentally foggy
Vitamin B6 supports enzymes that turn food into usable energy and balances amino acid levels
Pregnant or breastfeeding individuals should avoid GHK-Cu unless a healthcare provider determines the benefits outweigh potential risks