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After each KwikPen dose, carefully replace the outer needle shield

[21] Within cells, cyanocobalamin is converted to methylcobalamin and 5- deoxyadenosylcobalamin, coenzymes that participate respectively in homocysteine remethylation to methionine and in the isomerization of methylmalonyl-CoA to succinyl CoA, reactions essential for DNA synthesis, erythropoiesis, and myelin maintenance

Oral and sublingual B12 forms must get absorbed before they are active in your body

[8] Serious adverse effects are uncommon

Many cyanocobalamin injection products are stored at room temperature and protected from light, but the dispensed label is the controlling source

And if you have never been investigated, we will point you to your GP for a blood test first