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Patients on topical gels, patches, and intranasal formulations should have their testosterone checked between two to four weeks after commencement of therapy. For patients on daily medication, the Panel recommends that patients use medication the day of follow-up blood work. In addition to issues relating to the reliability of compounded products themselves, appropriate clinical studies on pharmacokinetics are lacking. In contrast to commercial pharmaceutical manufacturing, which is regulated by the FDA, compounded medications are regulated by state laws and, therefore, vary significantly from one region to another.405 While testosterone gels and creams are the most commonly used forms of compounded testosterone therapies and are routinely less expensive than branded forms of testosterone, these preparations by individual pharmacies occur without direct FDA oversight and approval.
There are treatments available for polycythemia caused by TRT. If you’re a patient and you have questions about injection instructions, you can contact us at email protected Pinch the skin at your injection site between your thumb and forefinger. This type of injection is typically used for a smaller volume of medication, usually up to 2 mL. If you do not have a Sharps container, Defy patients can order one through Defy Medical, or you can use a hard-plastic container with a screw top. Move two finger-widths down from the acromion to find your injection spot. If you are doing an intramuscular injection into the shoulder (a common injection site), feel for the acromion, or the bony point of the shoulder.
Follow the instructions provided by your healthcare provider for preparation, injection, and post-injection care. Before injecting testosterone, ensure you have a sterile environment and properly dispose of used needles. They can teach you the correct injection technique and ensure you understand all safety precautions. Knowing how to properly inject testosterone is essential for individuals undergoing hormone replacement therapy.
Another meta-analysis of RCTs performed by Cai324 concluded that testosterone therapy in diabetic men improved fasting glucose levels (mean difference -1.1 points), fasting serum insulin levels (mean difference -2.73), and HbA1c (mean difference -0.87). Despite the absence of definitive evidence, the Panel recommends that patients with these symptoms be counseled regarding the possibility of improvement on testosterone therapy. Improvements in sex drive were also assessed in another meta-analysis performed by Bolona et al.298  Using a variety of measures, the authors demonstrated improvement with a pooled effect of 1.31 (31% increase in sex drive) among men treated with testosterone, with greater improvements noted among men with lower baseline testosterone levels.
Clean supplies, proper handwashing, and organization significantly reduce infection risks. Following proper techniques ensures both safety and effectiveness of this important treatment. Testosterone injection for TRT requires an attention to detail throughout the entire process. Minor redness and tenderness are common at injection sites, these typically resolve within a few days. Once you have withdrawn the needle from your skin, dispose of the needle and syringe and then apply direct pressure to the injection site with a clean cotton ball or gauze. Once I've selected my injection site and gathered supplies, the next critical steps involve medication preparation and administration.
The choice of the injection site may depend on factors such as personal preference, accessibility, and healthcare provider recommendations. Another study published in 2015 found that there was very little difference between the IM and SUBQ route. The shallow injection depth and smaller needle size also contribute to a more comfortable experience for individuals. This technique involves injecting testosterone into the fatty tissue just below the skin. They may recommend slight variations in technique or injection site based on your individual needs. Proper technique and adherence to safety guidelines are crucial for a successful injection.
As with short-acting IM testosterone injections, the general recommendation is mid-cycle testing, after equilibration, and halfway between the first two 10-week injections. Patients who are on long-acting IM testosterone (testosterone undecanoate) should have blood work tested once steady state levels have been achieved. Patients on short-acting IM or short-acting SQ pellets (testosterone cypionate or enanthate) should have their testosterone measured after several cycles such that testosterone level equilibration has been achieved. Although steady-state levels are generally reached within days following commencement, a longer interval takes into account the potential decreases in endogenous testosterone production when on exogenous testosterone. Patients who have been prescribed testosterone should have regular laboratory testing conducted to confirm that therapeutic levels of testosterone are maintained, especially given the suppression of LH by exogenous testosterone and the subsequent decrease in endogenous testosterone production by the testes.
For trough total testosterone values 300 ng/dL are achieved at the end of an injection period. One study reported comparative pharmacokinetics between IM testosterone enanthate (250 mg every 3 weeks) and IM testosterone undenaconate (1,000 mg every 9 weeks, a dosage that is only available outside the United States).440 Results demonstrated that IM testosterone enanthate achieved trough levels of 239 ng/dL compared to 470 ng/dL with IM testosterone undecanoate at the end of the 10-week cycle. While mid-cycle testing is convenient for patients, there may be value in assessing peak level (18-36 hours after injection) as the adverse events (e.g., polycythemia, hyperestrogenism) are likely at least partially related to the peak level.

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