Anastrozole
Anastrozole

2.34
Anastrozole is a non-steroidal aromatase inhibitor used primarily in postmenopausal women to treat or prevent the recurrence of breast cancer.


Ingredient
Availability
In Stock
Delivery
Airmail (14-21 days) | EMS trackable (5-9 days)
Product is shipped in a fully discreet envelope with no content disclosure, including all required documentation inside

Product Sheet

Active Ingredient(s)
Anastrozole
Reference Brand
Anastrozole
Product Origin
Generic Product
Reference Manufacturer
AstraZeneca
Product Form
Tablet
Regulatory Classification
Rx
Primary Category
Oncology Support
Product Category
Aromatase Inhibitor
Pharmacological Class
Hormone Antagonist
Clinical Indications
Breast cancer
Manufacturer Description
Anastrozole is a non-steroidal aromatase inhibitor used primarily in postmenopausal women to treat or prevent the recurrence of breast cancer.
Mechanism of Action
Anastrozole blocks the aromatase enzyme, lowering circulating estrogen levels to deprive hormone-sensitive breast cancer cells of the estrogen needed for growth.
Route of Administration
Oral
Onset Time
Days to weeks
Duration
24 hours
Contraindications
Pregnancy, Premenopause
Severe Adverse Events
Increased fracture risk, Severe allergic reactions
Common Side Effects
Hot flashes, Joint pain
Uncommon Side Effects
Fatigue, Mood changes, Bone density loss
Drug Interactions
Tamoxifen, Estrogen therapy
Pregnancy Safety Warnings
Must not be used during pregnancy.
Age Restrictions
Adult women only
Storage Guidelines
Store in a dry, cool environment.
Related Products
Letrozole, Exemestane

Anastrozole FAQ

Does Anastrozole possess bioequivalence to originator products?

Generic Anastrozole undergoes rigorous testing to demonstrate pharmaceutical equivalence and plasma bioavailability profiles identical to the reference formulation.

How do multi-source economics influence manufacturing?

Standardized active pharmaceutical ingredient (API) production across multiple global facilities fosters lower acquisition costs without compromising chemical purity or regulatory compliance.

How does this online access coordinate logistics?

This platform facilitates the secure, internationally routed transit of medications for patients who possess legitimate, pre-existing prescriptions from their primary physician.

Does the formulation variance affect efficacy?

Strict regulatory oversight ensures every batch of Anastrozole maintains identical concentration and delivery characteristics regardless of the manufacturing source.

What determines the stability of the compound?

Pharmacological stability relies on precise manufacturing conditions and the integration of pharmaceutical-grade excipients that protect the API from degradation until the point of use.

Are there specific import regulations for Hong Kong residents?

Personal importation of medication remains subject to the ordinances defined by the Pharmacy and Poisons Board of Hong Kong, requiring valid documentation for all incoming shipments.

Can this medication affect drug testing results?

Anastrozole alters hormonal levels and might trigger flags in assays specifically testing for athletic performance enhancement or hormonal irregularities.

Pharmacological Identity of Anastrozole

Anastrozole functions as a non-steroidal aromatase inhibitor standardly formulated as 1mg tablets. This generic formulation suppresses the enzymatic conversion of androgens to estrogens in peripheral tissues. Physicians monitor systemic hormone markers when managing the biological effects of this compound within oncology support protocols.

Biological Mechanism of Action

Anastrozole exhibits selective binding to the aromatase enzyme complex. This inhibition restricts the catalytic activity responsible for transforming androstenedione and testosterone into estrone and estradiol. Reducing these circulating systemic estrogen levels alters the hormonal environment required for the proliferation of hormone-sensitive cellular lines.

Regulatory Indications

The Pharmacy and Poisons Board (PPB) of Hong Kong approves Anastrozole for the adjuvant treatment of hormone receptor-positive early breast cancer in postmenopausal women. Regulatory guidelines also validate its use for the first-line treatment of postmenopausal women with advanced or metastatic hormone receptor-positive breast cancer.

Pregnancy and Developmental Risks

Anastrozole functions as a potent hormonal suppressor and represents a significant risk to fetal development. Clinical data classifies this API as pregnancy category X due to documented evidence of fetal harm in animal models. Women of childbearing potential require absolute exclusion of pregnancy prior to initiating therapy with this compound.

Contraindications

Hormonal Sensitivity

This generic formulation remains contraindicated in premenopausal women due to the risk of paradoxical ovarian stimulation.

Hypersensitivity Reactions

Prior occurrences of allergic reaction to the active API or excipient components necessitate the selection of alternative pharmacological agents.

Adverse Events

Common

Reported physiological responses include arthralgia-joint pain-along with asthenia and vasomotor flares. Patients frequently report mild gastrointestinal disturbances or intermittent headache during the initial phases of therapeutic monitoring.

Serious

Clinical surveillance focuses on the evaluation of bone mineral density, as long-term aromatase inhibition often affects skeletal integrity. Hepatic function requires intermittent assessment to detect potential serum enzyme elevations. Cardiovascular monitoring tracks the presence of ischemic events or hypercholesterolemia.

Interactions

Concurrent administration of estrogen-containing treatments antagonizes the biological impact of this aromatase inhibitor. Tamoxifen or other selective estrogen receptor modulators potentially decrease the efficacy of Anastrozole and require careful clinical review by an oncologist.

Administration Protocols

Administer Anastrozole orally via 1mg tablets once daily. All frequency, daily total decisions, and titration schedules belong exclusively to a primary care physician or specialist.

Storage Specifications

Maintain tablets at controlled room temperature within the original moisture-resistant packaging. Prevent exposure to direct light or excessive humidity to ensure the chemical stability of the API. Dispose of expired unit-dose blister packs through designated pharmaceutical collection points in accordance with Hong Kong waste regulations.

Medical and Access Documentation

Information provided here serves educational purposes only and does not replace medical advice, diagnosis, or treatment. Always consult a licensed healthcare provider in Hong Kong before altering any therapy or starting a new regimen. This service coordinates international logistical routing through regulated, WHO-GMP compliant pharmacies for users with valid prior physician authorization.

We recommend checking local subsidized options under the Hong Kong Hospital Authority or private health frameworks first. This service acts strictly as a secondary facility for supply continuity. Licensed pharmacists in regulated jurisdictions manage all dispensing and medical reviews to support the continuity of care established by an attending physician.

Glossary

Aromatase
The enzyme responsible for the rate-limiting step in estrogen biosynthesis.
Adjuvant Treatment
A secondary therapy administered after primary surgical or radiation intervention to reduce the likelihood of cellular recurrence.
Estrogen Receptor Positive
A condition where cancer cells express proteins that respond to hormonal signaling for growth and maintenance.
Osteoporosis
A systemic skeletal disorder characterized by low bone mass and microarchitectural deterioration of bone tissue.
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