Wasted testosterone in dead space in syringe

[Sly]

I hate those 1ml bottles. Usually, whether you get the 1ml, 5ml, or 10ml bottle depends how your prescription is written and interpreted. I have my doctor write on the prescription to dispense in a 10ml bottle. This works most of the time, but not always.

 

[swoops36]

I hate those 1ml bottles. Usually, whether you get the 1ml, 5ml, or 10ml bottle depends how your prescription is written and interpreted. I have my doctor write on the prescription to dispense in a 10ml bottle. This works most of the time, but not always.

I will try that with my next Rx. My usual pharmacy only uses the 1mL bottles but I could check around

 

[TestOneTwo]

Yes, my pharmacy only uses the 1mL bottles. So I get 5 of them a month. I was under the impression the multi-use bottles were being phased out from major pharma brands

Are you getting those vials where you have to break/saw off the glass head?

 

[swoops36]

No not ampules, it’s a normal vial, just tiny

 

[TestOneTwo]

How about “virtually no waste” or “.01ml or less”

0.01ml or less? Where do I have to sign?

 

[madman]

Hmm I currently use 1ml easy touch luer lock insulin syringes. I’ve heard that the pharmacy is adding extra T to the bottles in order to compensate for the waste but I very much doubt it’s an extra 2.25ml over two bottles or 1.1ml per bottle which I would need going to EOD. As I said, the E3D protocol left me with just enough without running out before the express shipment is going to hit me. So your weekly dose is less than 70mg?

Here is the problem.....1 ml easy touch luer locks are not insulin syringes.

Most commonly used insulin syringes come with a fixed needle (low dead space).

Using a fixed needle (low dead space).....let alone drawing/injecting using the same needle results in minimal waste of medication.

“Fixed insulin type syringes have no void space at the point where the needle joins the syringe, and so are known as Low Dead Space Syringes, which is sometimes abbreviated in the literature to LDSS. They are made like this so that the full accurate dose is delivered, and there is no waste”

Insulin syringes are meant to be used to draw/inject insulin (water based).....although we very well know that they can and are used to draw/inject esterified T (oil based).....let alone other water based medications.

Commonly used insulin syringes come in 27-31 gauge with various needle lengths 15/64" (6mm), 5/16" (8 mm), 1/2" (12.7 mm).

Needle and syringe designs that affect dead space. a Standard (high dead space) syringe with standard needle. Average dead space (99 μL). b Low dead space syringe with permanently attached needle. Average dead space (3 μL). c Standard syringe with low dead space needle. No needle and syringe programs sent us low dead space needles (c) or a low dead space syringe (d) with a standard needle. However, use of both of these has become more common. We obtained samples of c and d from the manufacturers: c Covidien and d Henke-Sass

 

[TestOneTwo]

Here is the problem.....1 ml easy touch luer locks are not insulin syringes.

Insulin syringes come with a fixed needle (low dead space).

Using a fixed needle (low dead space).....let alone drawing/injecting using the same needle results in minimal waste of medication.

“Fixed insulin type syringes have no void space at the point where the needle joins the syringe, and so are known as Low Dead Space Syringes, which is sometimes abbreviated in the literature to LDSS. They are made like this so that the full accurate dose is delivered, and there is no waste”

Insulin syringes are meant to be used to draw/inject insulin (water based).....although we very well know that they can and are used to draw/inject esterified T (oil based).....let alone other water based medications.

Commonly used insulin syringes come in 27-31 gauge with various needle lengths 15/64" (6mm), 5/16" (8 mm), 1/2" (12.7 mm).




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Needle and syringe designs that affect dead space. a Standard (high dead space) syringe with standard needle. Average dead space (99 μL). b Low dead space syringe with permanently attached needle. Average dead space (3 μL). c Standard syringe with low dead space needle. No needle and syringe programs sent us low dead space needles (c) or a low dead space syringe (d) with a standard needle. However, use of both of these has become more common. We obtained samples of c and d from the manufacturers: c Covidien and d Henke-Sass

Awesome info, thanks! Turns out my syringes are lying. They say insulin but are clearly not if permanently attached needles are a criteria. They say: Easy Touch, U-100 Insulin Syringe Barrels, Luer Lock, 1ml

Mine are type d and the average waste of 0.045ml is spot on. I measured 0.05ml. Looking forward to receive my type b’s I have on order. I could certainly live better with 0.003 or let it even be 0.01ml! That’s still 5x less than what’s happening right now. So useful, thanks again for that!

 

[madman]

Awesome info, thanks for that! Turns out my syringes are lying. They say insulin but are clearly not if permanently attached needles are a criteria. They say: Easy Touch, U-100 Insulin Syringe Barrels, Luer Lock, 1ml

The description is accurate Easy Touch, U-100 Insulin Syringe Barrels, Luer Lock, 1ml..... those are designed to be used for insulin but they are just the barrel, luer lock(syringe) without the addition of the detachable needle.

When I stated.....“Here is the problem.....1 ml easy touch luer locks are not insulin syringes.”

I meant to say.....“Here is the problem.....1 ml easy touch luer locks are not FIXED insulin syringes.”

I should have been more specific as I was referring to the most commonly used insulin syringes which come with a fixed needle as they are considered to have the lowest dead space.

 

[TestOneTwo]

The description is accurate Easy Touch, U-100 Insulin Syringe Barrels, Luer Lock, 1ml..... those are designed to be used for insulin but they are just the barrel (syringe) and with the addition of the luer lock they are considered a conventional insulin syringe.

When I stated.....“Here is the problem.....1 ml easy touch luer locks are not insulin syringes.”

I meant to say.....“Here is the problem.....1 ml easy touch luer locks are not FIXED insulin syringes.”

I should have been more specific as I was referring to the most commonly used insulin syringes which come with a fixed needle as they are considered to have the lowest dead space.

Got it, thanks for the clarification.