Advice on low dose daily

madman

Member
FIGURE 1 | Percent change in mean gonadotropin levels (LH & FSH), from baseline through 6 months of testosterone treatment. Nasal testosterone (blue), dosed t.i.d., adapted from (15), n = 33. Topical testosterone (orange), dosed daily, adapted from (9), n = 123. IM injectable - 100 mg testosterone enanthate, (red), adapted from (10), n = 10. All changes from baseline were statistically significant. Nasal testosterone—FSH p = 0.03, all others p < 0.001. Standard error calculated using delta method.
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camygod

Member
Topical gel formulations achieve a sustained mid-normal T level with a once-daily application (8). While the topical gel results in less fluctuation of T levels between dosing intervals when compared to IM T, the sustained T levels result in inhibition of HPG axis activity (9). The inhibition of HPG axis activity is evidenced by the nearly full suppression of gonadotropin levels following treatment with either IM injectable testosterone (10) or topical gel administration (9).

Nasal administration of T (4.5% testosterone nasal gel, Natesto) allows for rapid absorption through the nasal mucosa such that serum T levels reach a peak concentration in ∼40 min. Once in the circulation, the T is quickly metabolized, with a return to near baseline T levels in 3–6 h (11). Therefore, multiple administrations of nasal T throughout the day (three times daily) maintain normal mean serum T levels over 24 h. The fluctuations in T levels potentially minimize the duration of exposure to exogenous T that is suppressive to the HPG axis, compared to other available T therapies.


Endocrine systems are regulated dynamically in response to positive or negative stimuli within a homeostatic environment. Modalities of T therapy evolved to extend the dosing interval and maintain sustained “steady-state” T levels. Long-acting TTh can inhibit the HPG axis, which in turn suppresses pituitary LH and FSH secretion, reducing circulating levels of LH and FSH and endogenous T production


Short-acting T therapy, consisting of several doses of T with a shorter half-life throughout the day, minimizes inhibition of the HPG axis and reduces the impairment of spermatogenesis.
makes sense then
 

Wolverine

Member
14mg /daily Test Cyp here. Been on that dose forever and doing great. I’m typically in the high 800’s - to low900s on that dose and feel great. E2 of 36 at last bloodwork. I highly recommend daily shots to be very one on TRT-

Indy
Indy: What is your SHBG level? I'm doing twice a week at 50mg each, but thinking on going to 3 times a week. My SHBG is always around 20. HCT a little high in the low 50s. Tx
 

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