Thalia Huie
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Second, structure your day to work with your hormonal rhythm where possible. But between work commitments and life obligations, you end up doing the blood draw on a Saturday afternoon at 2 PM because that's when the clinic was open. You finally decide to get your testosterone checked. You've noticed the energy isn't what it used to be, recovery from workouts takes longer, and you're carrying extra body fat despite eating reasonably well. That 400 ng/dL at 8 AM is your best number of the day. You're in the bottom quarter of the range, likely experiencing symptoms, and being told to accept it because you're not technically diseased. But normal and optimal aren't the same thing.
Low testosterone, often referred to as low T, can lead to symptoms such as decreased energy, reduced libido, and diminished muscle mass. When you hear the word testosterone, chances are you think of men. Total T Clinic is a group medical practice providing services to established patients. However, it’s important to note that these effects can vary from person to person and may take time to fully develop. However, this can vary depending on the type of testosterone ester used and individual factors.
The two most common methods for boosting testosterone in females are injections and topical creams. However, it’s important to remember that the full benefits of testosterone therapy often take weeks or months to become fully apparent. While the exact timing can vary, most men experience peak levels within 24 to 72 hours after their injection. This could involve changing the frequency of injections, adjusting the dosage, or even switching to a different form of testosterone. Your lifestyle can significantly impact how your body responds to testosterone therapy. To start, ensure you are receiving testosterone injections from a licensed healthcare provider. These tests can show when your testosterone peaks after injection and how long the effects last.
In 34 men from a multicenter, phase 3 study of a transdermal T patch system for TD, nightly applications of 2 patches (5.0 mg/day) resulted in peak levels occurring in the morning after application and decreasing slowly until system removal, mimicking the circadian patterns reported in healthy, young men.52 Esterification of T at the 17β‐position with undecanoic acid results in a longer‐acting IM TTh option that increases treatment intervals compared with that of other T esters.33, 38 The efficacy and safety of 750 mg IM TU were evaluated in an open‐label, 84‐week, phase 3 clinical trial of 130 men with TD.39 Enrolled men received 750 mg TU in 3 ml of castor oil (250 mg/ml) by deep IM injections administered at baseline, week 4, and every 10 weeks thereafter through 9 injections. The manufacturer of TE, supplied as 5 ml (200 mg/ml) in sesame oil and available in multiple‐dose vials, recommends that the starting dose of IM TE injections be 50 to 400 mg every 2 to 4 weeks.37 A study evaluated the relative efficacy of four different dosage regimens in 23 men with primary hypogonadism.36 The men received one of the four following regimens—100 mg weekly, 200 mg every 2 weeks, 300 mg every 3 weeks, or 400 mg every 4 weeks—and mean serum T concentrations were assessed once weekly during the initial 12‐week treatment period. Consistent with a previous study of SC TE,32 SC weekly dosing achieves stabilized physiologic T levels over a one‐week dosing interval after injection, and minimizes large peak and trough differences as seen with some other TTh.31
Testosterone enanthate and cypionate are the most commonly used esters in TRT, and both peak within the first three days post-injection. Then Wednesday or Thursday rolls around, and ...You pin your testosterone on Monday morning and feel fantast...Read More You pin your testosterone on Monday morning and feel fantastic by Tuesday.
The 75 mg implantable subdermal T pellet (TESTOPEL®) received FDA approval in 1972, and the recommended dosing regimen is 150 to 450 mg (2–6 pellets) implanted subcutaneously every 3 to 6 months; dosing is adjustable depending on the patient's age and diagnosis, and how the patient responds to treatment.45 However, data from the medical literature suggest that insertion of at least 10 pellets (≥750 mg) may be common in clinical practice.47, 48, 49, 50 With fewer peaks and troughs, IM TU may be more acceptable for men with TD seeking TTh than IM TC or TE. During the week 12 dosing interval, there was little fluctuation in dihydrotestosterone (DHT) and estradiol (E2). The recommended starting dose is 75 mg and may be adjusted in 25 mg increments to 50 or 100 mg based on trough‐concentration‐guided dosing.30 In September 2018, the FDA approved subcutaneous (SC) testosterone enanthate (TE) as an option for TTh for men with TD.
This pattern often indicates that your levels are dropping too far between injections. If the gap between injections is too long, that decline becomes noticeable, leading to fatigue, low motivation, or reduced libido before your next dose. This creates a wider fluctuation in hormone levels, which the body often experiences as inconsistency. When injections are spaced further apart, the difference between the peak and the trough becomes more noticeable. By the time the next injection is due, especially with weekly or biweekly schedules, levels may be significantly lower than where they started. Testosterone injections naturally rise and fall over time, which can create noticeable highs and lows throughout the week (Endocrine Society Clinical Practice Guidelines)
In this review, we sought to compare the PK profiles of serum T from different exogenous T formulations with diurnal variations in endogenous serum T levels and consider whether, as men age, there may be clinical value in mimicking the diurnal T rhythmicity with exogenous TTh. Some T replacement options provide intraday T level variations similar to normal circadian secretion, and others provide a flatter exposure profile reflective of depot release. To compare pharmacokinetic profiles of serum T from approved T formulations with endogenous diurnal T variations in young and older men, and to consider whether there may be value in mimicking the diurnal T rhythmicity with exogenous testosterone therapies as men age.
Low testosterone, often referred to as low T, can lead to symptoms such as decreased energy, reduced libido, and diminished muscle mass. When you hear the word testosterone, chances are you think of men. Total T Clinic is a group medical practice providing services to established patients. However, it’s important to note that these effects can vary from person to person and may take time to fully develop. However, this can vary depending on the type of testosterone ester used and individual factors.
The two most common methods for boosting testosterone in females are injections and topical creams. However, it’s important to remember that the full benefits of testosterone therapy often take weeks or months to become fully apparent. While the exact timing can vary, most men experience peak levels within 24 to 72 hours after their injection. This could involve changing the frequency of injections, adjusting the dosage, or even switching to a different form of testosterone. Your lifestyle can significantly impact how your body responds to testosterone therapy. To start, ensure you are receiving testosterone injections from a licensed healthcare provider. These tests can show when your testosterone peaks after injection and how long the effects last.
In 34 men from a multicenter, phase 3 study of a transdermal T patch system for TD, nightly applications of 2 patches (5.0 mg/day) resulted in peak levels occurring in the morning after application and decreasing slowly until system removal, mimicking the circadian patterns reported in healthy, young men.52 Esterification of T at the 17β‐position with undecanoic acid results in a longer‐acting IM TTh option that increases treatment intervals compared with that of other T esters.33, 38 The efficacy and safety of 750 mg IM TU were evaluated in an open‐label, 84‐week, phase 3 clinical trial of 130 men with TD.39 Enrolled men received 750 mg TU in 3 ml of castor oil (250 mg/ml) by deep IM injections administered at baseline, week 4, and every 10 weeks thereafter through 9 injections. The manufacturer of TE, supplied as 5 ml (200 mg/ml) in sesame oil and available in multiple‐dose vials, recommends that the starting dose of IM TE injections be 50 to 400 mg every 2 to 4 weeks.37 A study evaluated the relative efficacy of four different dosage regimens in 23 men with primary hypogonadism.36 The men received one of the four following regimens—100 mg weekly, 200 mg every 2 weeks, 300 mg every 3 weeks, or 400 mg every 4 weeks—and mean serum T concentrations were assessed once weekly during the initial 12‐week treatment period. Consistent with a previous study of SC TE,32 SC weekly dosing achieves stabilized physiologic T levels over a one‐week dosing interval after injection, and minimizes large peak and trough differences as seen with some other TTh.31
Testosterone enanthate and cypionate are the most commonly used esters in TRT, and both peak within the first three days post-injection. Then Wednesday or Thursday rolls around, and ...You pin your testosterone on Monday morning and feel fantast...Read More You pin your testosterone on Monday morning and feel fantastic by Tuesday.
The 75 mg implantable subdermal T pellet (TESTOPEL®) received FDA approval in 1972, and the recommended dosing regimen is 150 to 450 mg (2–6 pellets) implanted subcutaneously every 3 to 6 months; dosing is adjustable depending on the patient's age and diagnosis, and how the patient responds to treatment.45 However, data from the medical literature suggest that insertion of at least 10 pellets (≥750 mg) may be common in clinical practice.47, 48, 49, 50 With fewer peaks and troughs, IM TU may be more acceptable for men with TD seeking TTh than IM TC or TE. During the week 12 dosing interval, there was little fluctuation in dihydrotestosterone (DHT) and estradiol (E2). The recommended starting dose is 75 mg and may be adjusted in 25 mg increments to 50 or 100 mg based on trough‐concentration‐guided dosing.30 In September 2018, the FDA approved subcutaneous (SC) testosterone enanthate (TE) as an option for TTh for men with TD.
This pattern often indicates that your levels are dropping too far between injections. If the gap between injections is too long, that decline becomes noticeable, leading to fatigue, low motivation, or reduced libido before your next dose. This creates a wider fluctuation in hormone levels, which the body often experiences as inconsistency. When injections are spaced further apart, the difference between the peak and the trough becomes more noticeable. By the time the next injection is due, especially with weekly or biweekly schedules, levels may be significantly lower than where they started. Testosterone injections naturally rise and fall over time, which can create noticeable highs and lows throughout the week (Endocrine Society Clinical Practice Guidelines)
In this review, we sought to compare the PK profiles of serum T from different exogenous T formulations with diurnal variations in endogenous serum T levels and consider whether, as men age, there may be clinical value in mimicking the diurnal T rhythmicity with exogenous TTh. Some T replacement options provide intraday T level variations similar to normal circadian secretion, and others provide a flatter exposure profile reflective of depot release. To compare pharmacokinetic profiles of serum T from approved T formulations with endogenous diurnal T variations in young and older men, and to consider whether there may be value in mimicking the diurnal T rhythmicity with exogenous testosterone therapies as men age.
