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B12 injection site

miravet profile image
4 Replies

Good morning all, I've been SI for a number of years now, I usually alternate between left and right thigh. I am about 12.5 stone in weight and use a 1" needle.

However I have noticed that when my husband injects into my upper arm I feel much better, quicker and for longer.

I have had a scoot round the internet and have read that people with a BMI of over 24 should use a needle longer than 1.5 " to reach the muscle.

I know you can inject B12 subcutaneous , and a lot of people do, but I definetly feel better when I have my injection into my upper arm.

Does anyone have experience of changing from one site to another ?

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miravet profile image
miravet
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4 Replies
wedgewood profile image
wedgewood

For self-injection , I find the thigh the best . Easily accessible, large usable area . Could .not deal with my arm at all . Yes , I think that you need the longer needle for your thigh . A good one would be a 27G x 1.5 inches — obtainable both at medisave.co.uk and exchangesupplies.org

Use a coarser needle to withdraw the b12 say 21G x 1.5 inches

That is the finest one you can buy at that length . Other wise there is a25G x1.5 inch . Look up on the internet exactly where the Vastus Lateralis muscle is in the thigh . There are some good illustrations .

Nackapan profile image
Nackapan

I have IM in my upper arm.

Certainly goes in quicker . Not aleays a good thing for me as 5 days later feel a horrid drop too.

Also day after often a rough day .

? Levels peak or 'done too much' day of injection.

Sc.

In my stomach drlivers it quicker mostly.

Since putting on some weight thighs work well as well . Find s more strady flow.

Obviously some seem to have no effect and some hurt ect.

All since 2018.

2 yesrs of sc as well .

Tried to work out differences in my diary.

Always hoping an IM will last longer .

Still waiting

But as the only literature is on IM i do have them still .

Makes sense in theory but in practice nog so seemingly with me .

Berry007 profile image
Berry007

I may try that am currently subcutaneously into the thighs too

Beccy_123 profile image
Beccy_123

I'm very new to SI (1m hydro every other day), but was advised and show how to do sub-Q in my tummy - I'm 9+ stone, 5.4" with a decent amount to grab hold of! I asked about other injection sites, in terms of pain, bruising, discomfort, absorption rates, etc and was advised this was best method but could inject in the thigh if I wanted (private consultant). I was shown to do it at 45 degrees in my tummy. I have found this method super easy and comfortable to date, but interested in learning about other methods and reasons for this, anaecdotal evidence and research results.

Started 10 days ago, noticed rise in energy on day 2, notice big surge in energy and clearer mind/happier emotions on day 5 - sustained until day 10 (today). I DONT have signifcant neurological symptoms so maybe the method of injection and (dose, where, how and how often) are dependent on individual circumstances and who does the injecting?

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