Pedplot

Test gel plotter

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

t½ 1dTmax 0.3d100% 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.

Testosterone gel

Peak

100.0 mg

Trough

61.6 mg

Swing

38%

~Steady state

5d

~Washout

5.3d

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How to read this chart

Daily transdermal TRT (AndroGel / Testogel). Modeled as daily input with a ~1 day half-life — a sketch of topical replacement, not a serum assay.

The default row models 50.0 mg as a transdermal dose, daily (ed), for 12 weeks.

Also called AndroGel, Testosterone gel, Testogel.

The numbers

Half-life1d
Time to peak0.3d
Parent hormone100%
Default dose50.0 mg
Default frequencyDaily (ED)
Default duration12 weeks

What the default curve does

On that default row the model counts 84 doses. Steady state is about day 5. Washout runs to about day 5.3. In the last interval the peak is 100.0 mg and the trough is 61.6 mg, a swing of 38%.

How often a dose is still there

A half-life of 1d means each dose has mostly cleared before the next daily dose, so the line is a row of spikes.

Closest comparison

Test C has a half-life of 5d against 1d on this page.

Where the number comes from

AndroGel / Testogel labels: daily application; elimination half-life on the order of a day after absorption. How the model works.