Hi I was wondering if someone could give me some advice on B12 injections.
I’ve been buying Hydroxocobalamin which comes in 2Mg ampoules and been injecting it subcutaneously daily using insulin needles which have a maximum capacity of 500Mcg.
My question is, is it ok to use the whole ampoule and prefill 4 syringes at a time and keep them in the fridge - to be used over the following 4 days? Alternatively, once the ampoule has been opened does it have to be used straight away or again can it be stored somehow for future use.
Sorry but I’m quite new to this so I’m not sure what the correct procedure is.