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Genetix Pharma Andarine S4In stock
Sarms

Genetix Pharma Andarine S4

Andarine (S4)

$138$0.138 per mg

In stock · packed in Vancouver, tracking within 72 hours

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Compound
Andarine (S4)
Strength
20 mg/tab
Pack
50 tablets
Half-life*
4 h

Overview

Andarine, code S4, was one of the first SARMs developed, originally for benign prostate enlargement and muscle wasting. It never progressed to approval.

This listing is Genetix Pharma Andarine S4, photographed as we ship it and priced in Canadian dollars.

How it works

S4 binds androgen receptors as a partial agonist. It also binds a receptor in the eye, which explains the vision changes reported with it.

Clinical reference

There is no approved human dose.

Reference information from product labels and clinical literature only. It is not a recommendation or dosing advice for you; any use should be set and monitored by a doctor.

Measuring calculator

Type the amount from your prescription or clinician; the calculator only converts it. It does not suggest how much to take.

Tablets per day–
Days per bottle–
Tablet strength20 mg

Combinations and interactions

  • Adds to suppression from other androgens.
  • Interactions: not studied.

Risks and side effects

  • Vision. Yellow tint and trouble adjusting to darkness are commonly reported.
  • Suppression. Testosterone can fall.
  • Short half-life. About four hours, so effects fade quickly.

Do not use it if you are under 18, pregnant, or have eye disease.

Bloodwork to discuss with your doctor

  • Testosterone
  • Lipid panel
  • Liver enzymes


Chemistry

2D structure of Andarine (S4)Andarine (S4)
Formula
C19H18F3N3O6
Molecular weight
441.4 g/mol
CAS
401900-40-1

Research

Peer-reviewed papers behind the facts on this page, each linked to its PubMed record.

  1. Mass spectrometric characterization of urinary metabolites of the selective androgen receptor modulator andarine (S-4) for routine doping control purposesThevis M et al. · Rapid Commun Mass Spectrom 2010 · PMID 20623476
  2. Selective androgen receptor modulator use and related adverse events including drug-induced liver injury: Analysis of suspected casesLeciejewska N et al. · Eur J Clin Pharmacol 2024 · PMID 38059982

Storage and handling

Keep the bottle tightly closed at room temperature, away from moisture, heat and children. Do not move tablets into unlabelled containers.

This compound is not an approved drug in Canada. Health Canada has warned consumers about unauthorised products of this type, and it is prohibited in tested sport.

FAQ

Why the vision changes?

S4 binds a receptor in the retina.

Do the vision effects go away?

Reports describe them fading after stopping.

What strength are the tablets?

Labels list 20 mg per tablet.

How fast will it reach me?

Orders leave Vancouver by Canada Post Xpresspost and the tracking number arrives within 72 hours of your e-Transfer. Most provinces receive parcels 1 to 6 business days after that; the territories can take up to 10. Xpresspost is free on orders over $300, and a lost or seized parcel is reshipped at no charge.

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