Aromasin (Exemestane)

Aromasin
4.841 ratingsReviews
Generic:
Exemestane
Indications:
breast cancer
Analogs:
Anastrozole Letrozole Tamoxifen Fulvestrant Toremifene Exemestane Arimidex Femara Nolvadex Faslodex
AdultsPregnancyAllergiesDiabetesBreastfeedingChildrenDriving

Dosages

Aromasin 25 mg

Quantity Price per tablet You save Total price
30 C$6.58 - C$197.40
60 C$6.30 C$16.80 C$378.00
90 C$5.86 C$64.40 C$527.80
120 C$5.67 C$109.20 C$680.40
180 C$5.41 C$210.00 C$974.40
270 C$5.25 C$359.80 C$1,416.80
360 C$5.09 C$537.60 C$1,831.20

Manufacturers

Apotex Inc.Natco Pharma LimitedPfizer Australia Pty LtdPfizer Canada ULCPfizer Italia S.r.l.SandozTeva Pharmaceutical Industries

Payment & Shipping

Package Example

Your order is carefully packed and ships within 24 hours. Here's the typical package.

Sized like a regular personal letter (24x11x0.7 cm), with no indication of its contents.

Front View
Front View
Side View
Side View
Back View
Back View
Shipping Times
Shipping MethodEstimated delivery
Express Free for orders over C$420.00Estimated delivery to Canada: 4-7 days
Standard Free for orders over C$280.00Estimated delivery to Canada: 14-21 days
EMSCanada Post
Payment Methods
VisaMastercardAmerican ExpressBitcoin, USDTInteracApple PayGoogle PayPayPal

Discount Coupons

  • Victoria Day - May 18, 2026 8% VICTORIA8
  • Canada Day - July 1, 2026 10% CANADADAY10
  • Labour Day - September 7, 2026 6% LABOUR6
  • Thanksgiving (Canada) - October 12, 2026 9% THANKS9
  • Boxing Day - December 26, 2026 12% BOXING12

Brand Names

Also known as (by country):
CountryBrand Names
Canada
Apo-Exemestane
France
Aromasine
Australia
Exemestane Sandoz
Italy
Exemestane Teva

FAQ

A prescription is required to buy exemestane from local pharmacies in Canada. Our store policy allows you to order it without a prescription and have it sent by mail.

Store exemestane tablets at 25°C. Temperature excursions between 15°C and 30°C are permitted. Keep the tablets in their original packaging until use and protect them from moisture and unnecessary heat.

The regulatory status of the exact product supplied cannot be confirmed in advance because the manufacturer and product source may vary. Aromasin 25 mg oral tablets are listed in Health Canada's Drug Product Database, but this does not establish the approval status of a particular generic package.

A different appearance alone does not mean the medicine is wrong. Compare the active ingredient, 25 mg strength, tablet dosage form, manufacturer name, package label, lot number, expiry date, and any tablet imprint. Do not use the tablets until the discrepancy is checked if the ingredient, strength, dosage form, seal, imprint, or physical condition appears incorrect.

Exemestane can cause dizziness, drowsiness, fatigue, or weakness in some people. Do not drive or operate machinery if you are affected by these symptoms.

Exemestane is used to treat hormone-responsive breast cancer in postmenopausal women. It may be used as adjuvant treatment for early breast cancer or for advanced breast cancer that has progressed after tamoxifen treatment.

The usual adult regimen is one 25 mg tablet by mouth once daily after a meal. Take it at about the same time each day and swallow the tablet as directed; the treatment duration is determined by the oncology treatment plan.

No. Exemestane is contraindicated during pregnancy because lowering estrogen can harm fetal development. It is also contraindicated while breastfeeding because of the potential for serious effects in a breastfed infant.

Description

ExemestaneWhat Is Aromasin (Exemestane)?

Aromasin, or Exemestane, is a medication commonly used in the treatment of breast cancer, specifically in postmenopausal women. It belongs to a class of drugs known as aromatase inhibitors, which block the enzyme responsible for estrogen production in the body. Estrogen can promote the growth of certain types of breast cancers, so inhibiting its production is a key strategy in hormone receptor-positive breast cancer treatment. Aromasin is often prescribed after other treatments like tamoxifen, and its central role is in preventing cancer recurrence. Like any medication, it may have side effects, and patients must discuss their medical history and potential risks with their healthcare provider before starting treatment.

Pharmacokinetics

Exemestane is rapidly absorbed from the gastrointestinal tract. Its bioavailability is limited by first-pass metabolism but increases when taken with food. Exemestane is widely distributed and extensively bound to plasma proteins. It is metabolized via oxidation by the cytochrome P450 isoenzyme CYP3 A4 and via reduction by aldoketoreductase. Metabolites are excreted in the urine and feces, and less than 1% of a dose is excreted unchanged in the urine. Exemestane has a terminal elimination half-life of about 24 hours.

Uses and Administration

Exemestane is a selective inhibitor of the aromatase (estrogen synthase) system, similar to formestane. It is used in the treatment of advanced breast cancer in postmenopausal women who are no longer responsive to antioestrogen therapy. It is also used for adjuvant treatment of postmenopausal women with estrogen-receptor-positive early breast cancer. After 2 to 3 years of initial adjuvant tamoxifen treatment, five years of adjuvant hormonal therapy should be given.

The recommended oral dose is 25 mg once daily, preferably after a meal. In patients receiving potent inducers of the cytochrome P450 isoenzyme CYP3A4 (such as rifampicin or phenytoin), the recommended oral dose of exemestane is 50 mg once daily after a meal.

ExemestaneAdverse Effects and Precautions

The most frequently reported adverse effects of exemestane are gastrointestinal disturbances, hot flashes, arthralgia, myalgia, sweating, fatigue, and dizziness. Other reported effects include headache, insomnia, drowsiness, depression, skin rashes, alopecia, asthenia, and peripheral and leg edema. Thrombocytopenia and leucopenia have been reported occasionally. Reductions in bone mineral density can occur with long-term use of exemestane. Density should, therefore, be assessed at the start of therapy in those with osteoporosis or at risk of it, and patients should be monitored during therapy.

The use of exemestane is contra-indicated in premenopausal women (particularly in pregnancy).

Effects on the Musculoskeletal System

Exemestane therapy has been found to decrease bone mineral density (BMD) in postmenopausal women with early breast cancer. In one study, the decrease in BMD was seen within 6 months of switching therapy from tamoxifen and was significant at the lumbar spine and hip. In a Scandinavian study, bone mineral density loss with exemestane compared with placebo was modest from the femoral neck and not significant at the lumbar spine; however, it was noted that the changes in the placebo group were more significant than expected, possibly due to the lack of calcium and vitamin D supplementation, and that there is a high incidence of hip fracture in Scandinavia.

Patients starting exemestane therapy should be assessed for baseline bone mineral density. At the same time, those with normal BMD are considered not to need further assessment beyond lifestyle advice. Those with osteopenia should have their bone mineral density monitored and therapeutic interventions made as appropriate.

Interactions

The metabolism of exemestane is mediated by the cytochrome P450 isoenzyme CYP3A4. Rifampicin, a potent inducer of CYP isoenzymes, can decrease plasma concentrations of exemestane. Use with other drugs that induce this isoenzyme may reduce the efficacy of exemestane. Exemestane should also be used cautiously with drugs that are substrates for CYP3A4 and that have a narrow therapeutic index. Significant effects on exemestane clearance by cytochrome P450 isoenzyme inhibitors are considered unlikely. Exemestane should not be given oestrogen-containing drugs as these would negate its pharmacological action.

In the battle against hormone receptor-positive breast cancer, Aromasin proves to be a potent ally, providing patients undergoing treatment with reassurance and effectiveness. Its key function in preventing cancer recurrence and raising survival rates is highlighted by its mode of action, which involves blocking aromatase and lowering estrogen levels. Aromasin is a well-received and clinically validated treatment option that represents a significant advancement in the field of oncology, offering improved prospects for those facing breast cancer. 

Drug Nomenclature

International Nonproprietary Names (INNs) in main languages (French, Latin, Russian, and Spanish):

Synonyms: Eksemestaani; Exemestan; Exemestano; Exemestanum; FCE-24304

BAN: Exemestane

USAN: Exemestane

INN: Exemestane [rINN (en)]

INN: Exemestano [rINN (es)]

INN: Exémestane [rINN (fr)]

INN: Exemestanum [rINN (la)]

INN: Exemestane

Chemical name: 6-Methyleneandrosta-1,4-diene-3,17-dione

Molecular formula: C20H24O2 =296.4

CAS: 107868-30-4

ATC code: L02BG06

Medically reviewed by
Jennifer Bowles
Pharmacologist
Updated August 11, 2026

Customer questions

Asked by Customer, Toronto, Canada

My exemestane package arrived in Toronto after being left outside in very cold weather. What should I check before taking a tablet?

Answered by Support team

Check in Toronto that the outer package, tablet packaging, and tablets are dry, intact, and not visibly altered, and review the labelled storage conditions of 25°C with permitted excursions from 15°C to 30°C. Because the actual temperature and exposure time are unknown, do not use tablets from a damaged or questionable package until the product is checked.

Asked by Customer, Calgary, Canada

I live in Calgary and am concerned about transit conditions. Can exemestane tablets normally be sent through the mail?

Answered by Support team

Yes, solid oral tablets can normally travel by mail when appropriately packed and handled. They should remain in protective packaging and be checked on arrival for damage, moisture, or visible changes; storage is 25°C, with permitted excursions from 15°C to 30°C.

Asked by Customer, Trois-Rivieres, Canada

Before ordering to Trois-Rivières, how are exemestane tablets protected during ordinary transportation?

Answered by Support team

Exemestane is a solid oral tablet, so its packaging is intended to protect the tablets during normal handling in transit. When the package reaches Trois-Rivières, keep the tablets in their received packaging and check for broken seals, moisture damage, or altered tablets before use.

Asked by Customer, Sherbrooke, Canada

I am taking exemestane and have a dental extraction coming up. Should I tell the dentist about it?

Answered by Support team
Medical reviewed by Jennifer Bowles

Yes. Tell the dentist and the clinician managing your cancer treatment that you take exemestane, along with all other medicines and supplements. Do not stop or change your exemestane schedule for a procedure unless your treating clinician gives you specific instructions.

Product specifications

Active ingredientExemestane
Drug classAromatase inhibitor
Dosage formTablet
Available strengths25 mg
RouteOral
StorageStore at 25°C; excursions permitted from 15°C to 30°C.
ATC codeL02BG06

Regulatory information

Canada: medicine status
Registration statusAromasin 25 mg oral tablets are listed in Health Canada's Drug Product Database under DIN 02230426.
Prescription statusExemestane is a prescription medicine in Canada and requires a prescription from an authorized prescriber.
Public coveragePublic reimbursement is not national; eligibility and coverage for exemestane are determined by provincial or territorial drug plans and their formularies.
Safety monitoringSuspected adverse reactions can be reported to Health Canada through the Canada Vigilance Program.

More information