Half-life estimate, not bloodwork or dosing advice. Disclaimer.
Long nandrolone ester. About 64% parent hormone. Weekly dosing still accumulates for several weeks and washes out slowly after the last pin.
The default row models 200 mg as an intramuscular dose, weekly, for 12 weeks.
Also called Nandrolone decanoate, Deca Durabolin.
| Half-life | 7.5d |
|---|---|
| Time to peak | 4d |
| Parent hormone | 64% |
| Default dose | 200 mg |
| Default frequency | Weekly |
| Default duration | 12 weeks |
On that default row the model counts 12 doses. Steady state is about day 37.5. Washout runs to about day 41.5. In the last interval the peak is 269 mg and the trough is 203 mg, a swing of 24%.
About 64% of each milligram is parent hormone, so 100 mg of Nandrolone decanoate leaves about 64.0 mg of Nandrolone.
A half-life of 7.5d means a dose is still present at the next one, so the line climbs and then levels off.
NPP has a half-life of 1.5d against 7.5d on this page. Parent hormone is 67% there against 64% here.
Test E 500 + Deca 400 plots 400 mg weekly for 12 weeks. It is an illustration already in the app, not a protocol to follow.
Ester fraction ~0.64; half-life ~7.5 d from the steroidplot community PK set. How the model works.