Anastrozole 1 mg - British Dragon

Buy Anastrozole 1 mg tablets by British Dragon at XSteroids. Anastrozole, known commercially as Arimidex, is the aromatase inhibitor most often used to control estrogen while on cycle. British Dragon supplies it as 1 mg tablets, 100 per pack. This guide covers how it works, anastrozole dosage practice, what excessive suppression looks like and the side effect profile at clinical doses.

Anastrozole is a prescription medication for breast cancer and is not a hormone or an anabolic steroid, so the information below is educational only.

About Anastrozole by British Dragon

Anastrozole is a nonsteroidal aromatase inhibitor. It works by binding to the aromatase enzyme and interfering with its haem group, which stops the enzyme from converting androgens into estrogens. The inhibition is reversible and classified as Type II, distinguishing it from the steroidal, irreversible inhibitors such as exemestane.

Its medical home is breast cancer: anastrozole is used for hormone receptor positive disease in postmenopausal women, where the ATAC trial found it outperformed tamoxifen in localised ER positive cancer, and it is also used to prevent breast cancer in high-risk patients. It is taken orally.

How Anastrozole Works

Mechanism and Magnitude

At 1 mg per day, anastrozole reduces estradiol levels by at least 85%. Corticosteroid and other adrenal steroid levels are unaffected, which is one reason it is preferred over older inhibitors, and inhibition comes from the parent drug rather than its metabolites - the major circulating metabolite is inactive.

Half-Life and Liver Metabolism

Its elimination half-life is 40 to 50 hours, roughly one and a half to two days, which is what makes once-daily dosing practical. Metabolism is hepatic, about 85%, so liver function matters when the drug is used for long periods.

Anastrozole Dosage and Estrogen Control

Clinical Dosing

The medical dose in adults is 1 mg once daily, and in boys treated for peripheral precocious puberty it is used at 0.5 to 1 mg daily together with an androgen receptor blocker. Those are the reference points any other use is measured against.

Use On Cycle

In bodybuilding, anastrozole is used to keep estrogen within range when aromatising compounds are in play, and the recurring mistake is over-suppression. Killing estrogen entirely produces dry, aching joints, loss of libido, flat mood and worse lipid values. The practical answer is to choose the dose by blood work rather than by feel, starting low and adjusting on results - which is also why the 1 mg tablet is often split.

Anastrozole vs SERMs

An aromatase inhibitor and a SERM are not interchangeable. Anastrozole reduces how much estrogen the body makes; Tamoxifen and Clomiphene block or modulate the receptor without lowering circulating estrogen, which is why they are recovery tools rather than on-cycle estrogen control. Other inhibitors in the catalog work slightly differently: Exemestane is steroidal and irreversible, and Letrozole is far more potent. Options like Mesterolone are not inhibitors at all - they are androgens used for a different purpose entirely.

Anastrozole Side Effects and Precautions

At clinical doses, common effects include hot flushes, fatigue, joint pain and arthralgia, mood changes, depression, nausea, rash, insomnia, headache, raised blood pressure and oedema. The more serious concerns are bone health and cardiovascular risk: aromatase inhibitors are associated with increased osteoporosis and fracture risk, and an increased risk of heart disease. Because lowering estrogen has these consequences, the compound should be used at the lowest effective amount, with blood work and medical oversight. It is not for women who are pregnant or breastfeeding.

Storage Instructions

Store the tablets at room temperature in a dry place, away from direct light and moisture. Keep the pack sealed until use and always store it out of the reach of children.

Why Buy Anastrozole from XSteroids?

At XSteroids you buy the British Dragon Anastrozole tablets directly from the brand catalog, with secure checkout, US domestic shipping in 3 to 6 days and international delivery in 12 to 26 days. Browse the full range on the British Dragon brand page to complete your cycle support.