Half-life estimate, not bloodwork or dosing advice. Disclaimer.
Four testosterone esters in one vial: propionate, phenylpropionate, isocaproate and decanoate. The plotter expands one dose into those four curves. A 250 mg dose is about 177 mg of testosterone, and that is what the line draws. Also called Sustanon 250, Sust.
| Half-life | 7.5d |
|---|---|
| Time to peak | 3d |
| Parent hormone | 70% |
| Example input | 250 mg |
| Example frequency | once a week |
| Example length | 12 weeks |
| Data quality | Medium |
Composition and 176 mg testosterone per ml from the Sustanon 250 UK SmPC. The curve sums the four child esters, whose half-lives are community estimates; the SmPC reports a single-dose peak at 24–48 h. How the model works.
250 mg once a week for 12 weeks. With a 7.5d half-life, it levels off around day 42. The row runs longer than that, so the plateau is on the chart. Between doses it runs from about 124 to 223 mg, a swing of 45%. Each dose is its own spike. After the last dose, the tail takes about 36 days to fall to a few percent.