Why Inject Deca Every Week When Its Half-life is About 15 Days?

why people inject deca durabolin every week , whereas its half life its about 15days ??

Because stable levels of blood plasma concentration are not the same as half life. You want stable levels and the best way to achieve that is by administering it in a way that smooths out the half life decay.

Assume 500mg/w is the target dose. For every two week injections you need 1,000mg per shot. So here is the difference in release between 1,000mg every two weeks vs 250mg e3.5d over the course of 10 weeks.


Did you make that excel yourself? Always wondered how I’d do exactly these cumulative curves haha

SteroidCalc. Very useful resource for plotting out any kind of plan.

1 Like