Active live, Half life, etc.

If you administer 1200mg of test en:

On day - 0 exogenous test = 0mg
On day - 4 exogenous test = 600mg
On day - 8 exogenous test = 1200mg
On day - 12 exogenous test = 600mg
On day - 16 exogenous test = 0mg

assuming a 16 day active life.

OR, ignoring the "Leach in" time taken

on day - 0 exogenous test = 1200mg
on day - 8 exogenous test = 600mg
on day - 16 exogenous test = 300mg
on day - 24 exogenous test = 150mg
on day - 32 exogenous test = 75mg
on day - 40 exogenous test = 37.5mg

i.e. test levels halve every 8 days & due to regular adminitration (2 x week) test levels actually accumulate.

In example 1, PCT could start on or after day 16 as exogenous test is falling below what natural weekly test levels would be.

In example 2, test levels are dose dependant and PCT should start around day 32 after last shot.
Which one is right?

www.roidcalc.com will tell you what you need to know

Batman wrote:

www.roidcalc.com will tell you what you need to know

good site there Batman !

@ WOT

Man you got a impressive chest

Thanks Mr Wayne!

So by punching the numbers, it looks like example 2 is the right option i.e. it is dose dependant and the levels decrease by half every half life.

The the more you administer the longer it takes for your blood levels to decease to below what would be natural test levels (7mg/day)

So 300mg Test En clears your system after 32 days.

By that calc, maybe I started my PCT a little early