Toremifene (Fareston)
2-{4-[(Z)-4-chloro-1,2-diphenylbut-1-enyl]phenoxy}-N,N-dimethylethanamine citrate. Selective Estrogen Receptor Modulator (SERM), serm.
This page describes what Toremifene (Fareston) is and its known risks. It is not medical advice and not a guide to using it. Many of these substances are prescription-only or illegal to use without a prescription. Speak to a doctor.
- Class
- Selective Estrogen Receptor Modulator (SERM)
- Legal status
- Prescription only (FDA-approved for breast cancer)
- Half-life
- 5 days
- Liver strain
- Low
- Kidney strain
- Low
- Converts to estrogen
- None
- Suppresses natural hormones
- Not typically
Medical uses
- Metastatic breast cancer (women)
What it does in the body
Endocrine
- Increased LH/FSH and testosterone (similar mechanism to tamoxifen)
- Anti-estrogenic activity in breast tissue
Forms, half-life and detection
| Form | Half-life | Reported detection window |
|---|---|---|
| Oral | 5 days | Unknown |
Side effects and health risks
Visual
- Lower cataract risk than tamoxifen (theoretical advantage)
Liver
- Elevated liver enzymes (rare)
Other
- Hot flashes
- Sweating
Related compounds
Questions
What is the half-life of Toremifene (Fareston)?
About 5 days. Half-life is the time for the level in the blood to fall by half.
How long is Toremifene (Fareston) detectable?
Testing windows of Unknown are reported, depending on the test and the person.
Is Toremifene (Fareston) legal?
Prescription only (FDA-approved for breast cancer). Laws differ by country and change; check the rules where you live.
What blood tests matter with Toremifene (Fareston)?
Ask a doctor which tests suit you.
What are the side effects of Toremifene (Fareston)?
Visual: lower cataract risk than tamoxifen (theoretical advantage). Liver: elevated liver enzymes (rare). Other: hot flashes and sweating.
For information only, not medical advice. MyoStats is a tracking tool used at your own discretion. Speak to a doctor before changing your training, diet, medication or anything you take.