Pedplot

NPP plotter

Half-life estimate, not bloodwork or dosing advice. Disclaimer.

t½ 1.5dTmax 1d67% parent

To step a dose up, add another row of the same compound with a later start day. The chart is remaining active amount, not serum concentration.

Peaks, troughs, and half-life
Estimated remaining active mg. Washout continues after the last dose. Mixed IU and mg protocols are not summed.

Nandrolone phenylpropionate

Peak

111 mg

Trough

70.0 mg

Swing

37%

~Steady state

7.5d

~Washout

8.5d

Start from a protocol
Fills the form with a common stack. Edit the numbers after. Educational sketch, not a recommendation.
Saved locally
Stored in localStorage on this device. Reload a saved protocol from this list.

No saved protocols in this browser yet.

How to read this chart

Short nandrolone ester. Pair it with nandrolone decanoate at the same weekly milligrams to see how ester length changes peaks and troughs.

The default row models 100 mg as an intramuscular dose, every other day (eod), for 12 weeks.

Also called Nandrolone phenylpropionate, Npp Steroid.

The numbers

Half-life1.5d
Time to peak1d
Parent hormone67%
Default dose100 mg
Default frequencyEvery other day (EOD)
Default duration12 weeks

What the default curve does

On that default row the model counts 42 doses. Steady state is about day 7.5. Washout runs to about day 8.5. In the last interval the peak is 111 mg and the trough is 70.0 mg, a swing of 37%.

Parent hormone

About 67% of each milligram is parent hormone, so 100 mg of Nandrolone phenylpropionate leaves about 67.0 mg of Nandrolone.

How often a dose is still there

A half-life of 1.5d means each dose has mostly cleared before the next daily dose, so the line is a row of spikes.

Closest comparison

Deca has a half-life of 7.5d against 1.5d on this page. Parent hormone is 64% there against 67% here.

An illustration already in the app

Test E 500 + NPP plots 100 mg every other day (eod) for 12 weeks. It is an illustration already in the app, not a protocol to follow.

Open Test E 500 + NPP in the plotter

Where the number comes from

Ester fraction ~0.67; half-life ~1.5 d from the steroidplot community PK set. How the model works.