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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Should You Be Injecting Testosterone Under the Skin?
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<blockquote data-quote="EmpowerPharmacy" data-source="post: 4200" data-attributes="member: 109"><p>Jasen, great questions about the different carrier oils and their respective viscosities as well as pH.</p><p></p><p>Firstly, pH isn't a factor in Oil based Injectables as pH is a measure of the amount of Hydrogen Ions is an AQUEOUS solution.</p><p></p><p>Pressure gradients when drawing are negligible due to the small cross sectional area of the needle acting as an effective choke. I ran an experiment with different gauge syringes and our <a href="http://www.empowerrxpharmacy.com/drugs/testosterone-cypionate-injection.html" target="_blank">Testosterone Cypionate</a> in Sesame Oil.</p><table class='post-table width: 443' style='width: 100%'><tr><td ><table class='post-table width: 627' style='width: 100%'><tr><td ><p><strong>Size of Needle</strong></p></td><td ><p>25G</p></td><td ><p>27G</p></td><td ><p>29G</p></td><td ><p>31G</p></td></tr><tr><td ><p><strong>Amount drawn in 1 minute</strong></p></td><td ><p>2mL</p></td><td ><p>0.8mL</p></td><td ><p>0.32mL</p></td><td ><p>0.07mL</p></td></tr></table></p></td><td></td><td></td><td></td><td></td></tr><tr><td></td><td></td><td></td><td></td><td></td></tr></table>As the results show the amount drawn becomes exponentially smaller with a smaller gauge needle. This is due to the Radius^4 variable in our equation.</p><p></p><p></p><p>So what else does Poiseuille's law teach us? When you have a small radius changing the viscosity won't cause a huge difference in flow rates. It's the radius value that dominates the equation, not the viscosity, pressure differential or length. From this we can determine that the carrier oil wouldn't make a measurable difference in draw time.</p><p></p><p>Using the above data I recommend either a 27G or 29G needle to draw and inject Testosterone Cypionate/Enanthate for a SQ injection. Preferably a 29G as it will only take 1-2 minutes out of a patient's week to draw their dose and 10-20 seconds to inject it.</p></blockquote><p></p>
[QUOTE="EmpowerPharmacy, post: 4200, member: 109"] Jasen, great questions about the different carrier oils and their respective viscosities as well as pH. Firstly, pH isn't a factor in Oil based Injectables as pH is a measure of the amount of Hydrogen Ions is an AQUEOUS solution. Pressure gradients when drawing are negligible due to the small cross sectional area of the needle acting as an effective choke. I ran an experiment with different gauge syringes and our [URL='http://www.empowerrxpharmacy.com/drugs/testosterone-cypionate-injection.html']Testosterone Cypionate[/URL] in Sesame Oil. [TABLE=width:-443][TR][TD] [TABLE=width:-627][TR][TD] [B]Size of Needle[/B] [/TD] [TD] 25G [/TD] [TD] 27G [/TD] [TD] 29G [/TD] [TD] 31G [/TD][/TR] [TR][TD] [B]Amount drawn in 1 minute[/B] [/TD] [TD] 2mL [/TD] [TD] 0.8mL [/TD] [TD] 0.32mL [/TD] [TD] 0.07mL [/TD][/TR][/TABLE] [/TD] [TD] [/TD] [TD] [/TD] [TD] [/TD] [TD] [/TD][/TR] [TR][TD] [/TD] [TD] [/TD] [TD] [/TD] [TD] [/TD] [TD] [/TD][/TR][/TABLE] As the results show the amount drawn becomes exponentially smaller with a smaller gauge needle. This is due to the Radius^4 variable in our equation. So what else does Poiseuille's law teach us? When you have a small radius changing the viscosity won't cause a huge difference in flow rates. It's the radius value that dominates the equation, not the viscosity, pressure differential or length. From this we can determine that the carrier oil wouldn't make a measurable difference in draw time. Using the above data I recommend either a 27G or 29G needle to draw and inject Testosterone Cypionate/Enanthate for a SQ injection. Preferably a 29G as it will only take 1-2 minutes out of a patient's week to draw their dose and 10-20 seconds to inject it. [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Should You Be Injecting Testosterone Under the Skin?
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