Ok found the book after some more digging. Looks really interesting. Indeed the half life is 4.5 days, but 250mg of test e resulted in at least natural levels for up to 3 weeks after injection.
It’s just a question of how often to inject. There’s nothing sacred about the half-life timeframe. More often = more stable, but that has to be weighed against the hassle. I’m going to try e10d and see how I feel. My levels will always be above natural, but will of course fluctuate a lot (by more than a factor of 4 actually). Even injecting e5d will mean more than a factor of 2, so anyone could argue eod or ed or hell every 12 hours is best to make levels as stable as possible.
I’m still working on my complete protocol but will post it when finished. Easier that way with a starting point for discussion. [/quote]
hmm… i don’t know which figure you’re looking at, but pretty much everything i saw had it returning close to baseline at 10 days… there might be very little remaining beyond that, but i doubt so much it really matters here.
from page 418:
"Single-dose pharmacokinetics of testosteroneenanthate after intramuscular administration of 250 mg testosterone enanthate to seven hypogonadal patients and the best-fitted pharmacokinetic profile are shown in Fig. 14.6 (Nieschlag et al. 1976).
Maximal testosterone levels in the supraphysiological range were seen shortly after injection (39.4 nmol/l, tmax = 10 h). Testosterone levels below the normal range were observed following day 12 after injection. The calculated values were 9911 nmol â?? h/l for AUC, 8.5 d for MRT and 4.5 d for terminal half-life
if you were looking at using this solely as actual “replacement,”, then you could use e10d, but you will have your test start low, go up, and then come back down to baseline. even the TRT guys generally don’t do that, most shoot cyp weekly (albeit at 100 mg).
as far as doing a “cruise,” you will feel better and have less estrogen fluctuations is you use a lower dose and shoot more frequently (weekly, in this case).
for an actual cycle, if you shoot this way, you will have a more limited period in which you will have supraphysiological levels to actually gain benefit from. you would prolly only be making gains half the time, instead of all the time. so in this case, i would go 2x week minimum, and more frequently with a higher dose.
let me know if this doesn’t make sense, and i’ll try to clarify…