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Weight loss injections/treatments
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Air bubble in new Kwikpen

6 replies

WLIcurious · 07/11/2026 11:14

Has anyone else had an air bubble in a new mj kwikpen?
I’ve just started a new pen and this is the second time it’s happened. I held it upright with the needle upwards and did the priming thing but the bubble was still there.

I make sure the pen is vertical with the bubble at the plunger end when injecting, but should I be worried if it does get injected? It is going into fat not my bloodstream so I don’t know if that makes a difference.

OP posts:
GiveMeWordGames · 07/11/2026 11:19

You're fine. The priming is mostly to make sure the needle is working rather than getting air out.

As you've said, it's a teeny, short needle that's only going into subcutaneous fat. Even if you nicked a tiny capillary - which does occasionally happen - you still couldn't give yourself an air embolism. Worry not!

TeddyBeans · 07/11/2026 11:28

We got an air bubble out of DPs new pen by getting it up into the tip and getting out through the priming steps. Just need to make sure it's all out (liquid comes out as well) before doing the actual jab.

As pp said though, it's nothing to worry about!

WLIcurious · 07/11/2026 14:59

I have tried to get it out with priming but I assume the needle goes too far into the vial to be effective.

Thank you both for reassuring me!

OP posts:
MildlyAnnoyed · 07/11/2026 16:04

You have to inject around 50ml air directly into a vein before you cause any damage. A small air bubble in a pen will be fine & nothing to worry about

Twoshoesnewshoes · 07/11/2026 16:20

Mine isn’t working at all - just won’t push in and not clicking when twisting- could this be why? I can’t see an air bubble but haven’t got my glasses on…

Wildfairy · 07/11/2026 18:01

Twoshoesnewshoes · 07/11/2026 16:20

Mine isn’t working at all - just won’t push in and not clicking when twisting- could this be why? I can’t see an air bubble but haven’t got my glasses on…

More likely a faulty needle. Try another.

op, air bubbles aren’t a concern for subcutaneous injections.

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