Anastrozole
Non-steroidal aromatase inhibitor (Arimidex). Lowers estrogen on aromatizing androgen cycles.
- Half-life
- 1.9 d
- Out of system
- ~10 days
- Route
- Oral
- Level
- Advanced
Levels carry over between doses — every 2–3 days is typical. After the last dose, roughly 97% has cleared in ~10 days (five half-lives) — the window that matters for washouts, bloodwork and surgery.
What Anastrozole is used for
- Lowers estrogen on aromatizing androgen cycles — controls water/gyno
- Flexible, easily titrated dosing
- Well-studied breast-cancer drug with a known profile
How it's typically used
Literature range: 0.5 mg every other day, adjusted to estradiol bloodwork.
What to watch for
- Crashing estrogen too low wrecks joints, libido, mood and lipids
- Long-term use lowers bone density
- Prescription medicine; dose to bloodwork, not to feel
About Ancillaries (SERMs / AIs)
- What they are
- Support drugs — SERMs, aromatase inhibitors, and prolactin controls used to manage the side effects of androgen use or to restart natural production afterwards.
- How they're run
- Oral tablets, dosed against bloodwork rather than on a fixed schedule.
- What to watch
- These are only meaningful with labs in hand. Crushing oestrogen with an AI wrecks joints, libido, and lipids just as thoroughly as having too much of it.
Full guide
Anastrozole: A Tracking Guide for the Aromatase Inhibitor
A non-steroidal AI that lowers estrogen. Useful in the right context, harmful if you over-suppress. What to monitor.
Other ancillaries (serms / ais)
Peptid AI is an educational and self-tracking tool — not a medical service, and not a vendor. Nothing here is medical advice, a prescription, or an endorsement. Doses reflect what is commonly reported in research literature; they are not recommendations. Many compounds listed are experimental, not approved for human use, and/or controlled substances that are illegal to possess without a prescription in many countries. Always consult a qualified physician before starting, changing, or stopping any protocol.