insulin syringe bubble with test cyp

fifty

Well-Known Member
I started trying 27g and 28g easytouch insulin syringes 1/2" for test cyp. I almost always end up with one sizeable air bubble at the top of my syringe after I'm done loading (and lots of tiny bubbles while loading). Even though the bubble is at the needle side of the syringe, it won't come out until the plunger hits it at the end of the injection and pushes it out.

I don't get this air bubble as often when doing hcg. If I do test cyp with a luer lock syringe and replaceable needle tip, the air bubble will float into the tapered base of the needle attachment and I can push it right out while my needle is still in the vial. The bubble in my insulin syringe won't seem to push out that way.

Any pro tips here?
 
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If the bubble gets down to less than a millimeter in diameter then I wouldn't worry about it. But I admit sometimes I get obsessed with getting rid of it. It depends on your patience. You can repeatedly do this after overfilling the syringe: Invert the syringe to send the bubble back to the plunger, then invert again, and as the bubble nears the needle press the plunger to create a flow through the needle back into the vial. If you do this enough with slight variations in angle then eventually you will blast the bubble out.
 
That tiny bubble is tough to get out and it's not going to effect you in any way. Guys hear air in injections and forget that that applies to IV injections, has no effect on IM/SQ that we do.
 
When I'm drawing testosterone from my vial into my syringe. I overfill my syringe and then try to work the bubbles out. Occasionally I do get some small bubbles in my syringe and I do inject them, I've never had any issues yet.
 

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A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

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Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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