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How Vitamin B12 Injections Work for Pernicious Anaemia Vitamin B12 injections in the UK contain hydroxocobalamin , which is the standard injectable formulation used in NHS practice

Each has its own mix of ingredients

Clinical studies show that B12 injections have no major side effects, though rare cases of sensitivity may occur [20]

Yes, B12 injections are generally very safe

[1] Other rare side effects noted (mostly in older literature or high-dose use) include: polycythemia vera and peripheral vascular thrombosis in patients receiving repeated injections (though these associations are not well understood, they were listed in prior product literature as possible adverse events)

Ora Vitamin B12 Chewables: These raspberry-flavored chewables are vegan-friendly, certified organic, and provide 62,500% of the DV for vitamin B12