Pedplot

Halotestin plotter

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

t½ 9hTmax 58m100% parent

The prefilled numbers are an example input to draw the curve, not a dose; Pedplot does not suggest one. To step a dose up, add another row of the same compound with a later start day.

Peaks, troughs, and half-life
Not a blood level. The chart shows the estimated milligrams of the drug still in the body, so it will not match a lab result in ng/dL. How the model works. Washout continues after the last dose. Mixed IU and mg protocols are not summed.

Fluoxymesterone

Peak

11.9 mg

Trough

2.07 mg

Swing

83%

~Steady state

2d

~Washout

2d

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Short oral. Daily pulse, little multi-week build-up. Same idea as other 17aa orals. There is no ester, so the line is the dose itself. Also called Fluoxymesterone, Halo, Androxy.

Half-life9h
Time to peak58m
Parent hormone100%
Example input10 mg
Example frequencyevery day
Example length4 weeks
Data qualityHigh

Halotestin label: half-life approximately 9.2 h. Tmax 1–2 h (Capponi et al. 1985), which also reports a 2.0 h harmonic mean half-life. How the model works.

The example curve

10 mg every day for 4 weeks. With a 9h half-life, it levels off around day 2. The row runs longer than that, so the plateau is on the chart. Between doses it runs from about 2.07 to 11.9 mg, a swing of 83%. Each dose is its own spike. After the last dose, the tail takes about 2 days to fall to a few percent.

Sources

  1. FDA label. Halotestin FDA label, Clinical Pharmacology: half-life after oral administration approximately 9.2 hours
  2. Paper. Capponi et al. 1985, J Pharm Sci (abstract): tmax 1–2 h after 10 mg; harmonic mean half-life 2.0 h