What is ARIMIMED 1 (Anastrozole)?
ARIMIMED 1 is anastrozole, the standard on-cycle aromatase inhibitor. Used properly it keeps estrogen in range; used by feel it is how people crash themselves.
Also sold as Arimidex, Anastrozol or anastrozole.
Anastrozole is a non-steroidal aromatase inhibitor. It sits on the aromatase enzyme and blocks it competitively, which stops testosterone converting to estrogen. The binding is reversible, so the effect fades as it clears and estrogen comes back up. Read our full anastrozole overview.
ARIMIMED 1 benefits
- Reliable, predictable estrogen control on cycle, the most widely used option here
- Long half-life, so every other day dosing holds levels steady
- Reversible binding, so the effect fades rather than persisting if you stop
- Well documented, with more accumulated user experience than the alternatives
- 1mg tablets, which split cleanly into the 0.5mg most protocols actually use
ARIMIMED 1 dosage
- Common starting point
- 0.25 to 0.5mg every other day
- Higher end
- 1mg every other day
- Adjust from
- An estradiol blood test, not from symptoms
- Frequency
- Every other day
- Half-life
- About 46 hours
- Post-cycle therapy
- Do not use, switch to a SERM
Most people sit at a quarter to half a tablet every other day. Starting at a whole tablet because that is what the tablet is, is one of the commonest routes to crashed estrogen.
Adjust from a blood test. High and low estrogen produce almost identical symptoms, so dosing by feel usually means overshooting and then overshooting again.
Package content
- Tablets
- 50 per box, as 2 strips of 25
- Strength
- 1mg anastrozole per tablet
- Anastrozole per box
- 50mg
- Half-life
- About 46 hours
- Brand
- Deus Medical
At 0.5mg every other day one box covers around 200 days.
Store below 30°C. Protect from light. Do not freeze. Keep out of reach of children.
Who is ARIMIMED 1 for?
Anyone running a compound that aromatises, primarily testosterone, and whose bloodwork says estrogen is climbing. Not everyone needs one, and that is worth establishing before starting.
Astera Labs sells the identical product, same 1mg strength and same 50 tablets, at the same price. If you are also running tamoxifen, exemestane is the better choice, because tamoxifen lowers anastrozole levels.
How to use ARIMIMED 1
Swallow with water, every other day at the same time. Split tablets with a pill cutter for the quarter and half doses most protocols use. Stop it when the cycle ends rather than carrying it into post-cycle therapy.




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