Pedplot

Mast P plotter

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

t½ 0.8dTmax 1d80% 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.

Drostanolone propionate

Peak

69.0 mg

Trough

69.0 mg

Swing

0%

~Steady state

4d

~Washout

5d

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How to read this chart

Masteron propionate. Short DHT-derivative ester; commonly plotted daily with Test P / Tren A.

The default row models 50.0 mg as an intramuscular dose, daily (ed), for 8 weeks.

Also called Drostanolone propionate, Masteron P, Masteron Propionate.

The numbers

Half-life0.8d
Time to peak1d
Parent hormone80%
Default dose50.0 mg
Default frequencyDaily (ED)
Default duration8 weeks

What the default curve does

On that default row the model counts 56 doses. Steady state is about day 4. Washout runs to about day 5. In the last interval the peak is 69.0 mg and the trough is 69.0 mg, a swing of 0%.

Parent hormone

About 80% of each milligram is parent hormone, so 100 mg of Drostanolone propionate leaves about 80.0 mg of Drostanolone.

How often a dose is still there

A half-life of 0.8d means each dose has mostly cleared before the next daily dose, so the line is a row of spikes.

Closest comparison

Mast E has a half-life of 4.5d against 0.8d on this page. Parent hormone is 70% there against 80% here.

Where the number comes from

Ester fraction ~0.80; propionate half-life ~0.8 d from the community PK set. How the model works.