Anastrozole Research Guide
Full name: Anastrozole (Arimidex)
An aromatase inhibitor widely prescribed by telemedicine clinics alongside testosterone therapy to control estrogen conversion. Prevents testosterone from being converted to estradiol, maintaining hormonal balance.
How Anastrozole Works
Selectively and reversibly inhibits aromatase (CYP19A1), the enzyme that converts androgens to estrogens. Reduces circulating estradiol levels without affecting other steroid pathways.
Dosing Protocol
- Typical dose: 0.25-0.5 mg
- Frequency: 2-3x per week
- Duration: As long as on TRT/hormone therapy
- Route: Oral tablet
Reported Benefits
- Estrogen control
- Reduced water retention
- Prevention of gynecomastia
- Maintained testosterone ratio
- Improved body composition
Potential Side Effects
- Joint pain/stiffness
- Bone density loss (long-term)
- Fatigue
- Hot flashes
- Mood changes
- Crashed estrogen (overdose)
Research Citations
- Low-dose anastrozole in male hormone optimization (2022) - Twice-weekly 0.25mg maintained estradiol in optimal range (20-30 pg/mL) without joint side effects in men on TRT.
Related Hormone Replacement Compounds
View full Anastrozole profile with 3D molecule viewer →