Anabolic steroidAndrogenOral17-alpha-alkylatedDesigner steroidAzine dimer

Dymethazine

Also known as DMZ · Dymethazine · Mebolazine · Roxilon · methasterone azine

Written by enwyReviewed 4 Aug 20262 sources0 comments

Dymethazine (DMZ) is an azine-linked designer steroid — essentially two methasterone (superdrol) molecules joined by a nitrogen bridge — that splits into methasterone-like halves in the body. It offers strong dry gains anecdotally but shares superdrol's high hepatotoxicity and strong suppression.

01 Overview

Dymethazine is an unusual 'dimer' prohormone: two 17α-methylated steroid units connected through an azine (nitrogen-nitrogen) linkage. In the acidic stomach the bond is thought to cleave into two methyldrostanolone (methasterone/superdrol) equivalents, so its effective pharmacology closely mirrors superdrol — potent, dry, non-aromatising mass and strength.

Because it delivers a superdrol-like methylated oral steroid, it is considered strongly hepatotoxic and strongly suppressive. No controlled human studies exist; effects are entirely anecdotal and inferred from methasterone. It was marketed in the early 2010s and later covered by designer-steroid legislation and sport bans.

02 Mechanism

Azine dimer cleaves into two methasterone (superdrol) units, each a potent 17α-methylated, non-aromatising androgen receptor agonist.

03 Dosing

Tier	Dose	Route	Notes
Common (marketed)	15–45 mg/day	Oral	Historic labelled dosing; behaves like superdrol so higher doses sharply increase toxicity.

Ester comparison

Ester	Half-life	Injection freq.	Testosterone by mass

04 Effects

Effect	Magnitude	Evidence
Strength increaseRapid strength gains commonly reported.	reported strong	Anecdotal
Strong dry mass gainSuperdrol-like dry lean gains reported over a short cycle.	reported strong	Anecdotal

05 Side effects

Effect	Severity	Frequency	Evidence	Countermeasures
HepatotoxicityAs a superdrol-equivalent methylated oral, it strongly raises liver enzymes and risks liver injury.	Severe	Common	Observational
HPTA suppressionStrong testosterone suppression requiring PCT.	Severe	Near-universal	Anecdotal

06 Legal status

United Kingdom

Class C

Anabolic steroid under the Misuse of Drugs Act. · as of Jan 2026

United States

Schedule III controlled

Covered by the Designer Anabolic Steroid Control Act of 2014. · as of Jan 2026

07 References

Dymethazine / mebolazine metabolism and detectionDrug Testing and Analysis

Methasterone (superdrol) hepatotoxicityPubMed

08 Discussion0 comments

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This page is reference information, not medical advice. Doses and protocols are documented as they appear in the clinical literature and in practice — describing them is not a recommendation to use them. Countermeasures listed here are not a substitute for a physician. Legal status varies by jurisdiction and changes.