Truth about half-life

[luiseduardo]

Hello everybody,

It's my first topic here. I'm from Brazil and I would like to learn more about this theme.

My question now is about the half-life of the medicaments. There are many sites with tables showing us this values for almost all medicaments. But, since I have read a interesting article I was wondering if the information about the half-life is correct. This article explains that many tables are incorrect, because they are based from Bill Roberts' calculations.. And after years, his calculation was considerated correct, but now is known that there are some mistakes...

So, for example, the correct half life posted in the article (in Portuguese, the name of the medicament is similar in English) :
Propionato de testosterona 2 days
Fenilpropionato de testosterona 3 days
Fenilpropionato de nandrolona 3 d
Isocaproato de testosterona 4 d
Decanoato de testosterona 7d
Decanoato de nandrolona 6-7 d
Cipionato de testosterona 6 d
Enantato de testosterona 5 d
Propionado drostanolona 2 d
Enantato de metenolona 5 d
Undecilenato de Boldenona 7 d
Acetato de Trenbolona 2 d
Enantato de trenbolona 5-6 d

And the incorrect ones :

Decanoato de nandrolona: 15 d
Undecilenato de boldenone : de 14 a 16 d
Mentelona: 10.5 d
Durateston: de 15 a 18 d
Cipionato de testosterona: 12 d
Enantato de testosterona: 10.5 d
Propionato de testosterona: 4.5 d
Testosterona aquosa: 1 d
Stanozolol : 1 d
Acetado de Trembolone: 3 d
Enantato de Metenolona: 10,5 d

So, anyone has heard something like this? Is this correct? So, pct timing should change?

Thanks!

[Bio-Active]

Why would pct change? when your pct starts is pretty standard long esters pct starts at 14-18 days from last pin short esters your pct starts 3 days from last pin. You just want to make sure you are paying attention the the lives of the compounds you run and run the test longer so pct can start at the desired time.

[luiseduardo]

Long esters shouldn't be between 3 and 4 weeks and short esters between 1 and 2 weeks? I learned this way... Is it incorrect?

[Bio-Active]

Long esters shouldn't be between 3 and 4 weeks and short esters between 1 and 2 weeks? I learned this way... Is it incorrect?

no short esters are 3 days before starting pct and longer esters are between 14-18 days depending on the ester

[luiseduardo]

Thanks

[Docd187123]

Long esters shouldn't be between 3 and 4 weeks and short esters between 1 and 2 weeks? I learned this way... Is it incorrect?

That really depends on several factors. When you begin PCT depends on the half life of the compound and the dosages you're taking. For example, 2 cycles of testosterone enanthate one @ 500mg/wk and the other at 1000mg/wk. In both cycles the half life remains the same but since blood concentrations of testosterone is so much higher at 1000mg/wk you would delay starting your PCT when compared to the 500mg/wk dose.

[Bio-Active]

That really depends on several factors. When you begin PCT depends on the half life of the compound and the dosages you're taking. For example, 2 cycles of testosterone enanthate one @ 500mg/wk and the other at 1000mg/wk. In both cycles the half life remains the same but since blood concentrations of testosterone is so much higher at 1000mg/wk you would delay starting your PCT when compared to the 500mg/wk dose.

This and running labs... good point doc! We all metabolize test different so these are just basic guidelines

[infinite_loop]

no short esters are 3 days before starting pct and longer esters are between 14-18 days depending on the ester

What if you're running a TRT level dose of test, say 150 mg/week, 75 mg (2x a week). Would you still wait 14 days for the 75 mg to clear?

[Bio-Active]

What if you're running a TRT level dose of test, say 150 mg/week, 75 mg (2x a week). Would you still wait 14 days for the 75 mg to clear?

Yes ^^^