Overview
Tamoxifen is a long-established breast cancer medicine. In men, doctors also use it off-label for gynecomastia and, in some clinics, to restart hormone production.
This listing is Zionova Nolvadex 20mg (20 mg · 50 tablets), photographed as we ship it and priced in Canadian dollars.
How it works
Tamoxifen blocks estrogen receptors in breast tissue while acting like estrogen in bone and the liver. In the brain it blocks estrogen’s brake on LH and FSH, which can raise natural testosterone in men.
Clinical reference
For breast cancer the Canadian label is 20 to 40 mg a day. Off-label use in men for gynecomastia has been studied at 10 to 20 mg a day.
Reference information from product labels and clinical literature only. It is not a recommendation or dosing advice for you; any use should be set and monitored by a doctor.
Measuring calculator
Type the amount from your prescription or clinician; the calculator only converts it. It does not suggest how much to take.
Combinations and interactions
- Often compared with clomiphene, a related SERM.
- Interactions: strong CYP2D6 inhibitors (some antidepressants such as paroxetine and fluoxetine) reduce its activation; it increases warfarin effect.
Risks and side effects
- Blood clots. Raises the risk of deep vein thrombosis and pulmonary embolism.
- Eyes. Rare cataracts and retinal changes.
- Mood and libido. Low mood and reduced libido are reported in men.
Do not use it if you have a history of blood clots, are pregnant, or take warfarin without medical supervision.
Bloodwork to discuss with your doctor
- Testosterone, LH and FSH
- Estradiol
- Lipid panel
- Liver enzymes
Peer-reviewed papers behind the facts on this page, each linked to its PubMed record.
Chemistry
Tamoxifen citrate
Research
Storage and handling
Keep the bottle tightly closed at room temperature, away from moisture, heat and children. Do not move tablets into unlabelled containers.
Canadian legal status
This is a prescription medicine in Canada. A doctor should assess whether it suits you, choose the dose and monitor you while you use it.
FAQ
What strength are the tablets?
Bottles here list 20 mg tablets.
Is tamoxifen the same as an aromatase inhibitor?
No. It blocks estrogen receptors; aromatase inhibitors stop estrogen being made.
How long does it stay in the body?
Its half-life is five to seven days.
How fast will it reach me?
Orders leave Vancouver by Canada Post Xpresspost and the tracking number arrives within 72 hours of your e-Transfer. Most provinces receive parcels 1 to 6 business days after that; the territories can take up to 10. Xpresspost is free on orders over $300, and a lost or seized parcel is reshipped at no charge.
Reviews
5.0 out of 5 from 3 reviews by customers.
Impressed with the results and quality !
Thank you! Quality matters most with PCT, so we're glad you're impressed.
Best product I have taken for estrogen control and the reason is the the high quality top notch product
Thank you, Sean! High quality matters even more for the products that keep you on track.
3 reviews for Zionova Nolvadex 20mg – Anti-Estrogen PCT Tablets (50 Count)
Only logged in customers who have purchased this product may leave a review.
Sean M. (verified owner) –
Best product I have taken for estrogen control and the reason is the the high quality top notch product
Steroids Canada (store manager) –
Thank you, Sean! High quality matters even more for the products that keep you on track.
Anonymous (verified owner) –
Impressed with the results and quality !
Steroids Canada (store manager) –
Thank you! Quality matters most with PCT, so we’re glad you’re impressed.
Anonymous (verified owner) –
Steroids Canada (store manager) –
Thanks for the five-star rating on Zionova Nolvadex. We appreciate you taking the time.