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Many stabilize in a mid-normal serum range using totals around ~75–150 mg/week for short-acting injectables, but outliers exist due to differences in absorption, SHBG, body size, and comorbidities. Because dosing is individualized, a dose testosterone discussion with your clinician should also cover comfort (needle size/site), consistency (same day/time each week), and timed labs (drawn at the correct point in your injection cycle). Many men do better on weekly injections or even twice-weekly, depending on lab results and how they feel. This article explores how injection schedules work, what science says about weekly, biweekly, and more frequent dosing, and how to find the right rhythm for your body.
The present data also shows that testosterone administration substantially alters the relation between the audience effect and self-reported value orientations. However, we did not observe any interaction of the testosterone’s effect with cortisol levels measured at baseline or with cortisol reactivity, thus our data do not provide support for such an interpretation. However, our data do not indicate that testosterone affects exploration in general, as we did not find any testosterone influence on choice consistency in the private setting. In all models, we simultaneously modeled participants’ choice and RT, separately for each between-subject condition (i.e., placebo/testosterone; observed/private). The testosterone dose and timing of the experiment were based on the previously established pharmacokinetic study of testosterone gel preparations in healthy young males . Those allocated to the testosterone group received a single dose of testosterone gel containing 150 mg testosterone Androgel®; participants in the placebo group received an equivalent amount of placebo gel.
Changes in serum total and free testosterone levels over time between injections were evaluated by mixed models analysis with maximum likelihood estimation. SC injections were administered by patients between 0800 hours and 1100 hours using their own syringes, needles, and testosterone vials but were observed by study staff to ensure proper technique. To further characterize SC testosterone as a practical and acceptable alternative to IM administration, we evaluated the pharmacokinetics of testosterone following manual SC injections of testosterone cypionate to patients undergoing FTM gender transition. Recent reports indicate that SC administration of testosterone esters may be an acceptable alternative to IM injections in hypogonadal men and FTM transgender patients 13–16.
We’ll cover typical formulations (like cypionate and enanthate), dosing frequencies, how to read mg-to-mL conversions, and what lab numbers matter.