Educational information only. Not medical advice. Talk to a qualified healthcare professional before using any compound. Disclaimer

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Triptorelin

Hormones & Testosterone

Triptorelin

Also known as Decapeptyl, Trelstar, Gonapeptyl, Triptodur

Strong human evidenceApproved medicineWADA prohibited

Price range: €60 through €130

Discussed for: One-time restart after a steroid cycle.

Sequence: not listed. Modified or non-standard residues are left out on purpose.

Effect strengthHow hard it acts on the body7/10
Proof levelHow well that is shown in humans5/10
Risk levelHow much can go wrong7/10

Editorial 1 to 10 estimates from published research, not measured values. How to read these

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01 / Identity

What it is

Triptorelin is a synthetic decapeptide. Main reported uses: one-time restart after a steroid cycle. Current status: prescription drug (prostate cancer, IVF, early puberty).

Molecule type
Synthetic decapeptide
How it is taken
Injection (IM/SC)
Other names
Decapeptyl, Trelstar, Gonapeptyl, Triptodur

Route only. This library does not publish doses or protocols.

02 / Mechanism

How it is thought to work

GnRH agonist; a single dose surges LH/FSH. Repeated use shuts testosterone DOWN

03 / Potential benefits

What people use it for

One-time restart after a steroid cycle

Strong human evidence

Large human trials exist. Effects are well described, at least for the approved use.

Listed uses are what people use it for, not proven outcomes.

04 / Known risks

Side effects and risks

Hot flashes; repeated use causes chemical castration

Risk level 7 of 10

High risk score: serious harms are documented or plausible, and there is little data to rule them out.

Unknown long-term effects count as a risk, not as a clean record.

05 / Regulatory

Regulatory status

Status
Approved medicine
Details
Prescription drug (prostate cancer, IVF, early puberty)
Sport (WADA)
Yes: S2 (peptide hormones / GH factors) (men)

Status reflects information up to mid-2026 and changes over time. Check current sources.

06 / Evidence quality

How good is the evidence?

Strong for approved uses; limited for 'restart'

How we grade evidence

07 / Notes and sources

Notes and sources

  • Anyone using compounds like this regularly should have medical supervision and bloodwork (for example IGF-1, glucose and HbA1c, hormones, lipids).
  • Source: Peptide Reference Table, an editorial review of published research up to mid-2026. Scores are 1 to 10 editorial estimates, not measured values. Regulatory and WADA status change over time.

Educational information only. Not medical advice. Talk to a qualified healthcare professional before using any compound.

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