Originally Posted by
DaRoq
It's mentioned in TRT: A Recipe for Success (1) that using hCG as sole TRT may induce LH insensitivity, therefore causing Primary Hypogonadism at higher dosages. Not sure if what you're taking is considered a high dose, but it seems to be having the same effect. I wonder if your HPTA actually restarted, and that's why your LH is higher on the same dose of Tore?
The other limitation with this type of TRT is that its effect is dependent on the leydig cells in the testis, meaning that each individual will plateau at some point. As mentioned, you might've been able to maximize testosterone production by getting your Vitamin D levels in check since it supposedly influences leydig cell activity. 5,000-10,000 IU/day is typical for those of us supplementing OTC, while others are taking 50,000 IU/week by prescription.
Testosterone levels while on exogenous TRT is dose-dependent, which is to say that the effect can be much greater. (referring to ecdysone's statement)
(1) John Crisler, DO 2009