What is Anastrozole?

Anastrozole is an aromatase inhibitor originally developed to treat breast cancer in post-menopausal women. It works by reducing the amount of oestrogen the body produces. In the fitness world, it's widely used to keep oestrogen under control during anabolic steroid cycles.

Quick Facts

How Does It Work?

Anastrozole blocks the aromatase enzyme, which is responsible for converting testosterone and other androgens into oestrogen. Less aromatase activity means lower oestrogen levels in the body. This helps prevent oestrogen-related side effects that can occur when using anabolic steroids.

What It's Used For

• Controlling oestrogen levels during anabolic steroid cycles
• Preventing water retention and bloating caused by high oestrogen
• Reducing the risk of gynaecomastia (breast tissue development in men)

What to Expect

You can expect noticeably reduced water retention and a leaner, harder appearance when oestrogen is kept in check. Mood and libido tend to stay more stable when oestrogen isn't running too high. Most users notice a difference within a few days of starting anastrozole.

Possible Side Effects

• Joint pain or stiffness from oestrogen being too low
• Fatigue and low mood if oestrogen is suppressed too far
• Reduced libido if dosage is too high

Cycle & Dosage Notes

Anastrozole is typically run alongside aromatising steroids like testosterone throughout a cycle. A common starting dose is 0.5mg every other day, adjusted based on how you feel and ideally guided by blood work. It is not generally used as a standalone PCT compound but pairs well with SERMs like Nolvadex or Clomid when needed.

Storage

Keep at room temperature (15–25°C), away from light and moisture. Leave in the original packaging.

This info is for research and educational purposes only. Check the laws in your country before ordering.