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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Needle Size to Use To Protect Testosterone Vial Rubber Stopper Integrity
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<blockquote data-quote="EmpowerPharmacy" data-source="post: 47488" data-attributes="member: 109"><p>When drawing <a href="http://www.empowerrxpharmacy.com/drugs/testosterone-cypionate-injection.html" target="_blank">Testosterone Cypionate</a> a lot of patients ask me whether or not they should draw with a 18G or 21G needle before swapping it with a smaller one (25G 1'') before injecting. Here are the reasons we recommend using a 21G to draw instead of a 18G needle:</p><p></p><p>1. <strong>Fewer Losses of Testosterone.</strong> A 18G needle holds more liquid than a 21G so there will be more Testosterone stuck in the bore of the 18G needle. These losses add up and cause patients to run our of their medication before their next refill. Since Testosterone is a controlled substance pharmacies can't refill the medication more than a week or two early and patients can be without their medicine until their next refill is authorized.</p><p></p><p>2. <strong>Draw time is identical</strong>. Our Testosterone Cypionate is made in Grapeseed Oil vs the Cottonseed Oil that is found in commercially available Testosterone Cypionate. Grapeseed Oil is much less viscous than Cottonseed Oil, which allows it to flow just as quickly through a 21G needle as it does through a 18G needle. I made a video documenting the draw time of a 18G vs a 21G here: <a href="https://youtu.be/q76GOKK6UbA" target="_blank">https://youtu.be/q76GOKK6UbA</a></p><p></p><p>3. <strong>The stopper's life is extended</strong>. Using a large bore draw needle causes a large hole in the rubber stopper every time it is punctured. When large holes are present this causes the vial to no longer be a closed system, which increases the possibility of germs being introducing into the vial.</p><p></p><p>4. <strong>Coring is prevented</strong>. By not using a large bore needle you also prevent coring the stopper, which is the breaking off of a cylindrical piece of rubber into the vial due to the cutting action of the needle puncturing the stopper. This piece of rubber then gets sucked into the barrel of the syringe during the draw and then gets injected into the patient. This occurs more often as the bore of the needle increases.</p><p></p><p>5. <strong>Sterility is assured.</strong> Since there is less of a chance of the stopper becoming damaged with a 21G needle vs a 18G needle there less less of a chance of a patient getting an infection.</p><p></p><p>Ideally, you'd like to draw with as small of a bore needle as possible. For intramuscular injections I recommend drawing and injecting with a 1cc 25G 1'' syringe. For subcutaneous injections I recommend drawing and injecting with a 1cc 29G 1/2'' insulin syringe.</p></blockquote><p></p>
[QUOTE="EmpowerPharmacy, post: 47488, member: 109"] When drawing [URL="http://www.empowerrxpharmacy.com/drugs/testosterone-cypionate-injection.html"]Testosterone Cypionate[/URL] a lot of patients ask me whether or not they should draw with a 18G or 21G needle before swapping it with a smaller one (25G 1'') before injecting. Here are the reasons we recommend using a 21G to draw instead of a 18G needle: 1. [B]Fewer Losses of Testosterone.[/B] A 18G needle holds more liquid than a 21G so there will be more Testosterone stuck in the bore of the 18G needle. These losses add up and cause patients to run our of their medication before their next refill. Since Testosterone is a controlled substance pharmacies can't refill the medication more than a week or two early and patients can be without their medicine until their next refill is authorized. 2. [B]Draw time is identical[/B]. Our Testosterone Cypionate is made in Grapeseed Oil vs the Cottonseed Oil that is found in commercially available Testosterone Cypionate. Grapeseed Oil is much less viscous than Cottonseed Oil, which allows it to flow just as quickly through a 21G needle as it does through a 18G needle. I made a video documenting the draw time of a 18G vs a 21G here: [URL]https://youtu.be/q76GOKK6UbA[/URL] 3. [B]The stopper's life is extended[/B]. Using a large bore draw needle causes a large hole in the rubber stopper every time it is punctured. When large holes are present this causes the vial to no longer be a closed system, which increases the possibility of germs being introducing into the vial. 4. [B]Coring is prevented[/B]. By not using a large bore needle you also prevent coring the stopper, which is the breaking off of a cylindrical piece of rubber into the vial due to the cutting action of the needle puncturing the stopper. This piece of rubber then gets sucked into the barrel of the syringe during the draw and then gets injected into the patient. This occurs more often as the bore of the needle increases. 5. [B]Sterility is assured.[/B] Since there is less of a chance of the stopper becoming damaged with a 21G needle vs a 18G needle there less less of a chance of a patient getting an infection. Ideally, you'd like to draw with as small of a bore needle as possible. For intramuscular injections I recommend drawing and injecting with a 1cc 25G 1'' syringe. For subcutaneous injections I recommend drawing and injecting with a 1cc 29G 1/2'' insulin syringe. [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Needle Size to Use To Protect Testosterone Vial Rubber Stopper Integrity
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