Half-lives / Tesamorelin
Tesamorelin half-life
Tesamorelin stays in your system about 3.2 hours — five half-lives at a half-life of ≈ 26–38 min (0.63 h). The computed decay curve is below, with the primary source cited.
Also searched as: tesa, egrifta, egrifta sv.
Source: FDA label: Egrifta (tesamorelin) prescribing information (SC t½ ≈ 38 min)
Frequently asked
How long does Tesamorelin stay in your system?
With a half-life of ≈ 26–38 min, roughly 97% of a single Tesamorelin dose is cleared after five half-lives — about 3.2 hours. Repeated dosing accumulates and takes correspondingly longer to clear.
What does a ≈ 26–38 min half-life mean in practice?
Every 26–38 min, the remaining amount halves: 100% → 50% → 25% → 12.5%, and so on. The curve above plots exactly this decay for a single dose.
Where does this Tesamorelin half-life number come from?
FDA label: Egrifta (tesamorelin) prescribing information (SC t½ ≈ 38 min). We cite a primary source for every half-life we publish and version every change.
Related: Tesamorelin reconstitution calculator · Tesamorelin dose charts
Related half-lives
Other Growth-hormone & IGF axis — how long each stays active:
Guides mentioning Tesamorelin
See your own estimated levels
The Zyra Track app plots this curve from the doses you actually log — accumulation, overlaps, and all. 7-day free trial.
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