Categories: ,


1mg, 100 tablets per bottle

Arimidex (Anastrozole) is an anti estrogenic drug developed for the treatment of advanced breast cancer in women. Specifically, this agent is the first in a newer class of third generation selective oral aromatase inhibitors. It acts by blocking the enzyme aromatase, subsequently blocking the production of estrogen in the body. Since many forms of breast cancer cells are stimulated by estrogen, reducing levels of this hormone in the body may retard the progression of the disease. This is also the fundamental use of tamoxifen citrate (Nolvadex), except nolvadex blocks the action of estrogen at the receptor, not its actual endogenous production. The effects of anastrozole can be very substantial, with a daily dosage of 1mg capable of production estrogen suppression greater than 80% in treated patients. With the powerful effect this drug has on hormone levels, it is usually only prescribed to post menopausal women. Anastrozole was developed by Zeneca Pharmaceuticals, and approved for use in the United States at the end of 1995. The drug was developed as a new adjunct treatment for operable breast cancer in postmenopausal female patients, an area of medicine that had a long history of nolvadex use. Substantial data was needed to shift prescribing trends away from such an established medication treatment.


Arimidex is indicated for adjuvant treatment of postmenopausal women with hormone receptor-positive early breast cancer.

Arimidex is indicated for the first-line treatment of postmenopausal women with hormone receptor-positive or hormone receptor unknown locally advanced or metastatic breast cancer.

Arimidex is indicated for the treatment of advanced breast cancer in postmenopausal women with disease progression following tamoxifen therapy. Patients with ER-negative disease and patients who did not respond to previous tamoxifen therapy rarely responded to Arimidex.


Take this preparation by mouth with or without snack, once daily, or as directed by your doctor. Remember to take in Arimidex (Anastrozole) at the same time everyday as prescribed by your physician. Do not use the drug in bigger amounts or for longer than recommended. Follow the suggestions on your indication paper. The patient may need to continue taking in Arimidex (Anastrozole) for up to 5 years. Follow your doctor`s advice.

Take the missed dose as soon as you remember. In case it is almost hour for your next measure, wait until then to take the drug and pass over the forgetted measure. Do not take in additional pills to recover the lost dose.

Seek emergency medical attention if you think you have taken too much Arimidex

Side effects

Seek emergency medical attention if any of the following are detected: -sudden numbness or weakness, especially on one side of the body;
-sudden severe headache, confusion, problems with vision, speech, or balance;
-a bone fracture;
-swollen glands;
-feeling short of breath;
-nausea, upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
swelling in your hands or feet; or severe skin reaction — fever, sore throat, swelling in your face or tongue, burning in your eyes, skin pain, followed by a red or purple skin rash that spreads (especially in the face or upper body) and causes blistering and peeling.

Less serious side effects may include:
-numbness, tingling, cold feeling, or weakness in your hand or wrist;
-problems with your fingers while gripping;
-hot flashes;
-joint pain or stiffness;
-depression, mood changes, sleep problems (insomnia);
-cough, sore throat;
-thinning hair;
-mild nausea, vomiting; or
-back pain, bone pain.
This is not a complete list of side effects, others may be observed. Call your physician for therapeutic advice about negative symptoms.


Anastrozole may not work as well if you take it together with tamoxifen or an estrogen medication (such as hormone replacement therapy, estrogen creams, or birth control pills, injections, implants, skin patches, and vaginal rings). Before you start taking anastrozole, tell your doctor if you also take tamoxifen or estrogen.

There may be other drugs that can interact with anastrozole. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.

– Do not modify your dose without your physician`s agreement. Your health will not ameliorate any quicker and the risk of serious side reaponses can grow.
– Because this drug may be absorbed through the skin, women who are pregnant or who can get pregnant should not touch or divide the tablets of this drug.

Important information:
Arimidex (Anastrozole) can show unexpected responses that may influence your mind or reactions. Take care whether you drive or do anything that involves you to be awake and attentive.

Body building

Most commonly called Arimidex, this substance is a true aromatase inhibitor which works by blocking the aromatase enzyme in the body, thus limiting the amount of estrogen buildup that takes place. This compound has obvious benefits to bodybuilders who use aromatizing steroids such as testosterone. These individuals might face estrogen related side effects such as water bloat and “gyno”, but by taking Arimidex while on cycle, the chance of any of these sides are greatly reduced. In studies that have been done, Arimidex has been shown to reduce estrogen in the body by roughly 50%. This is a good balance for bodybuilders , because some estrogen is needed in order for the full anabolic benefits of the steroids being taken to be achieved. These results are typically the same with a dosage of .5 mg a day as they are with a dosage of 1 mg a day, meaning that in most cases, a half tablet a day will be sufficient for estrogen control throughout cycle. Typically, bodybuilders using Arimidex will begin taking it the day they start their cycle, and will run it throughout the duration of steroid administration. It is also important to point out Arimidex?s ability to increase testosterone in the body. Some studies have shown that natural testosterone levels have increases as much as 60% after the use of this substance for 7 days. Because of this, bodybuilders find this drug extremely effective during PCT where as they are trying to elevate natural levels as much as possible in order to avoid a post cycle “crash”.

When used to mitigate the estrogenic side effects of anabolic/androgenic steroid use, male athletes and bodybuilders will commonly take a dose of .5mg to 1mg of anastrozole per day. In some instances a half of a tablet taken every other day is sufficient to mitigate the buildup of estrogen. When used with readily aromatizing androgens such as methandrostenolone or testosterone, gynecomastia and water retention are often effectively blocked. Additionally, the use of anastrozole may decrease fat mass, which can also be tied to estrogen levels. The result can be a harder and much more defined look to the muscles and physique, which makes this agent of interest for dieting and cutting purposes as well.


Arimidex is not subject to the Controlled Substances Act


Arimidex has a drug-active half life of 3-days

Alternative designation

Anastrozole, ADEX