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Cycle support / Aromatase inhibitors

6 In the index

Anastrozole Adex

An approved breast-cancer drug that lowers estrogen in the body, also used off-label by steroid users to control estrogen-related side effects. It's well proven at lowering estrogen, but pushing estrogen too low can hurt cholesterol levels, joints, and bone strength.

Also known as Arimidex, anastrazole, Anastrozol, ICI D1033, ICI-D1033, ZD 1033, 2Z07MYW1AZ

Effects Hormonal
Routes Oral
Legal status Prescription drug
WADA Banned at all times

3D Molecular Structure of C17H19N5

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  • Carbon
  • Hydrogen
  • Nitrogen

Chemistry

Formula
C17H19N5
Molar mass
293.4
CAS
120511-73-1
PubChem CID
2187
IUPAC name
2-[3-(2-cyanopropan-2-yl)-5-(1,2,4-triazol-1-ylmethyl)phenyl]-2-methylpropanenitrile
InChIKey
YBBLVLTVTVSKRW-UHFFFAOYSA-N

Reported dosing

User-reported

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

Typical dose 0.5-1 mg
Reported range 0.25 mg twice weekly to 1 mg daily depending on use case
Route Oral
Frequency Every other day to once daily
Duration Chronic (oncology) or cycle-length (off-label bodybuilding use)

FDA-approved for breast cancer at 1 mg/day (Arimidex); off-label bodybuilding dosing is typically lower and unsupervised, risking over-suppression of estrogen and negative effects on lipids and bone.

Where this comes from FDA prescribing information; off-label user-reported dosing

There is no approved human dosing for this compound. The figures above are what users and vendors report, not what has been established as safe or effective. Treat them as a record of what is done, not as guidance.