2D structure · PubChem CID 15020Mesterolone

ZionovaOralSKU ZionovaProviron

Zionova Proviron

Mesterolone · Oral tablet

5.0 from 2 reviews

$126CAD

In stock, ships from Vancouver

Strength20 mg per tablet

Pack50 tablets

Total per order1,000 mg

Half-life≈ 12 hours

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What most customers add with this:

Arimidex Genetix Pharma$120.00 · Keeps estrogen in check

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Zionova Clomid$114.00 · For after your cycle

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Delivery guaranteeLost or seized: reshipped free
Tracking in 72 hPacked in Vancouver
Interace-TransferFrom any Canadian bank
Plain packagingNo product names outside

Overview

Proviron is mesterolone, an oral DHT derivative still prescribed in some countries for low testosterone and some forms of male infertility.

How it works

Mesterolone is not 17-alpha-alkylated, so it is gentler on the liver than most orals. It binds SHBG strongly and activates androgen receptors, with weak anabolic effect.

Chemistry

From PubChem, the US National Library of Medicine’s chemistry database.

Mesterolone

Formula: C₂₀H₃₂O₂
Molecular weight: 304.5 g/mol
CAS: 1424-00-6
PubChem CID: 15020 ↗

Clinical reference

Where Proviron is prescribed, the label starts at 25 mg one to three times a day, then 25 to 50 mg a day to maintain.

Label and guideline amounts are shown for reference only. They are not a recommendation, and we never give cycle or performance amounts. Any use belongs under a doctor’s care, with bloodwork.

Measuring calculator

Converts an amount you enter into what to measure. It does not suggest an amount.

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Strength used: 20 mg per tablet · pack: 50 tablets

Combinations and interactions

Prescribed or used alongside

It has been prescribed on its own for male hypogonadism in some countries.

Drug interactions

Few listed interactions; tell your doctor about any other hormones.

Risks and bloodwork

Hair loss and prostate

As a DHT derivative, it can speed hair loss and enlarge the prostate.

Lipids

HDL may fall.

Libido changes

Can go either way.

Suppression

Milder than most, but possible at higher amounts.

Bloodwork doctors check

Liver enzymes (ALT, AST, GGT) and bilirubin
Lipid panel, especially HDL
Complete blood count
Blood pressure
Total testosterone, LH and FSH

Not for

People under 18, anyone pregnant or breastfeeding, and anyone with liver disease, heart disease, uncontrolled blood pressure or a hormone-sensitive cancer, unless a doctor directs otherwise.

Canadian legal status

Anabolic steroids are listed in Schedule IV of the Controlled Drugs and Substances Act. Simple possession of a Schedule IV substance is not an offence under the Act; selling, importing or exporting one without authorisation is. Sports bodies that follow the World Anti-Doping Code ban them in and out of competition. This is general information, not legal advice.

References

Mesterolone and idiopathic male infertility: a double-blind study. World Health Organization Task Force on the Diagnosis and Treatment of InfertilityWHO Task Force · Int J Androl, 1989 · PMID 2680994
Androgens versus placebo or no treatment for idiopathic oligo/asthenospermiaVandekerckhove P et al. · Cochrane Database Syst Rev, 2000 · PMID 10796496

Reviews

5.02 reviews from customers

Reviews are published after a quick check. Only customers who bought this product can review it.

JaredVerified buyerDec 13, 2024

Rated without a written review.

Reply from SteroidsCanada.org

Jared, thank you once more! Five stars on the Proviron too. Much appreciated.

Eddie M.Verified buyerSep 29, 2023

Rated without a written review.

Reply from SteroidsCanada.org

Thanks, Eddie! We appreciate you taking the time to rate every item, Proviron included. That kind of feedback really helps other customers.

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FAQ

Is Proviron hard on the liver?

It is not 17-alpha-alkylated, so much less so than other orals.

Is it prescribed in Canada?

It is not marketed in Canada.

How long does it last?

About 12 hours.

How fast will it arrive?

Orders ship from Vancouver by Canada Post Xpresspost. You get a tracking number within 72 hours of payment; delivery then takes 1 to 2 business days in BC, 3 to 4 in Ontario and 3 to 5 in Quebec.

What if my parcel is lost or seized?

We reship it free. Contact us with your order number.

Adults 18+. This page is general information, not medical advice. Talk to a licensed healthcare provider before using any compound.