Gestrinone GEST

A synthetic hormone approved in some countries for treating endometriosis. Human studies support its effectiveness for that specific condition, though it can cause masculinizing side effects like acne, weight gain, and a deeper voice.

Also known as Dimetriose

Effects Build muscle

Routes Oral

Legal status Prescription drug

WADA Banned at all times

3D Molecular Structure of C₂₁H₂₄O₂

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Chemistry

Formula: C21H24O2
Molar mass: 308.4
CAS: 16320-04-0
PubChem CID: 27812

Reported dosing

Approved label

What has been reported in the literature and by users. This is a record of what is done, not a recommendation.

Typical dose 2.5 mg, 2-3 times weekly

Reported range 1.25-2.5 mg, 2-3 times weekly

Route Oral

Frequency 2-3 times weekly

Duration Chronic (as prescribed, where approved)

Approved in some countries for endometriosis; not FDA-approved in the US. Notably the steroid at the center of the BALCO/THG doping investigation.

Where this comes from International prescribing information (where approved)

These figures are recorded for reference and are not a recommendation. Dosing is a decision for you and a clinician.