Arimidex 101

Arimidex (Anastrozole) is what is classified as an aromatase inhibitor. Its original designed use was to treat breast cancer in women by lowering estrogen. It was eventually discovered that Arimidex could benefit bodybuilders by blocking estrogen formation or lowering already existing levels.

As I talked about in the Nolvadex 101 article, the biggest difference between an aromatase inhibitor such as Arimidex and a selective estrogen receptor modulator like Nolvadex is that Arimidex blunts estrogen formation and Nolvadex simply control it by not allowing any receptor binding.

However, this doesn't mean that already circulating levels of estrogen are not present just because Nolvadex is included in the drug regimen.

See also: How to Keep Estrogen Under Control

Arimidex works by reducing the aromatase enzyme which is what is the cause of elevated estrogen levels and a byproduct of drugs that can aromatize while on cycle.

Arimidex is superior to Nolvadex in almost every possible way with the exception of stimulating luteinizing hormone during cycle recovery (studies are showing that nolvadex is better at this than AI's, but this is a double edged sword because AI's are better at combating estrogen rebound)

If I had my choice on a SERM or an AI for post cycle recovery I would opt for an AI coupled with HCG and Clomid.

To develop the body of your dreams and learn all the best steroid cycles and secrets…

Straight from the Underground ebook

You need to read Straight From the Underground – the ultimate reference guide to steroids.


11 thoughts on “Arimidex 101”

  1. This is a great estrogen blocker, but can mess with cholesterol levels. Not saying don’t use but talking to my doc and looking at my blood work I can see differences in cholesterol.

    • yes, it can do that, thats why you only want to use it at just enough to combat estrogen and cycle off (or for the guys on TRT drop to a NORMAL TRT dose for periods of time, where not as much AI is needed)

  2. I’m on TRT 1cc a week of testosterone cypionate’s which is 200 mg a week , my estrogen got pretty high so he prescribed me Arimadex A half a pill every day but I got nervous with cholesterol so now I cut the pill
    Into four pieces and take a quarter of a pill every other day. I’m waiting to see how my next blood test locks . Do you think I’d be better off taking Nolvadex? Thank you and God bless .

    • no, arimadex is superior to nolvadex because it prevents estro formation where nolva just keeps it from binding to receptors but doesnt stop formation. 1/2 a pill everyday sounds like too much if the pills are 1mg, but script-wise they’ll occasionally dose them lower so I really don’t have an answer for this without knowing. Usuaully 1/2mg twice weekly is normal for using 200mg/wk of test

  3. What about if you’re just using arimidex and clomid as an alternative to TRT. How much arimidex and clomid, and how often? I was told 50mg clomid every day and 0.25 mg arimidex every 3 days. Is that a good protocol?

  4. I’m a beginner. I went ahead and started the pymirid cycle for beginning cycles.

    I’m on my second week of test cyph mondays I do my shot the first week felt fine 2nd week i feel a little weird but i believe I’m getting sick cause i went swimming and due to weather changing
    I just now got armidex. Its 1mg but I dont know if that’s too much lit of info says take .5 mg there capsules not pill form can you help me out please.

    • This is common onset of test, it’s called the test flu and it’ll pass. Go .5 on adex 3x a week , u shouldnt need more than that because u don’t wanna crash estrogen , u need a little of it to feel normal


Leave a Comment

Item added to cart.
0 items - $0.00