The MethylStenbolone (Ultradrol, M-Sten)

The MethylStenbolone (Ultradrol, M-Sten)

Presentation of the MethylStenbolone (Ultradrol) prohormone

MethylStenbolone is a recent and potent methylated prohormone that was officially launched in 2011 by Antaeus Labs with the name Ultradrol. It became so popular that some people call it the “ultradrol” prohormone instead of its real name MethylStenbolone. Many prohormone companies claimed to have a methylstenbolone prohormone in the past years before the official launch of M-Sten prohormones but it appears that they only contained Superdrol.

MethylStenbolone prohormones contains the ingredient 2,17a-dimethyl-5a-androsta-1-en-17b-ol-3-one which has a very similar name of Superdrol. Indeed, M-Sten prohormones produces about the same gains of Superdrol. We can almost say that they are brother.

Where to buy the MethylStenbolone (Ultradrol) prohormone ?

MethylStenbolone is no longer available on the market. We recommend you to read our article about the best prohormones 2024.

Additional information on a cycle of MethylStenbolone (Ultradrol) prohormone

M-Sten is a methylated prohormone that will produces extreme muscle mass gains like Superdrol. This is the perfect prohormone to do a bulking cycle. Some may uses it for a recomp or cutting cycle but it’s not intented for this. Please note that MethylStenbolone is a prohormone for advanced users, not beginners !

Gains of a “M-Sten – Ultradrol” cycle are impressive ! Weight increase can go up to 20 lbs in a 3 or 4 weeks cycle. These muscle gains also followed by a great boost in strength and energy.

Side effects of MethylStenbolone is about the same Superdrol. From users experiences, m-sten could give a little bit less side effects but everyone is different so…

Due to being methylated, MethylStenbolone is toxic for the liver. Liver damages can be avoided by taking a good liver support supplement or a full cycle support supplement. For the post cycle therapy (PCT), you need to take a SERM ! An otc pct is not enough because shutdown can be really hard.

* At the end of this article, you will find a M-Sten Prohormone Chart to run a proper cycle of this prohormone.

The MethylStenbolone (Ultradrol) Prohormone Chart

Here is some important details about the M-Sten prohormone. Have a question or need help, just leave out a comment.

Popular clones of MethylStenbolone : Ultradrol by Antaeus Labs (now discontinued but available under the name of Ultradrol Elite by Elite Formulations), M-Sten RX by Iron Mag Labs, Super DMZ RX 2.0 by BlackStone Labs (Iron Mag Labs), Ultra-Sten by IronFlex Supplements and many others…

Nomenclature of MethylStenbolone : 2,17a-dimethyl-5a-androsta-1-en-17b-ol-3-one (2,17α-dimethyl-5α-androsta-1-en-17β-ol-3-one), it can also be misspelled with a methyl instead of a dimethyl.

Methylated Prohormone : Yes

Results / Gains of a MethylStenbolone Cycle : Extreme lean muscle mass and size gains with a great increase in strength.

Side effects of a MethylStenbolone : Low, Middle or High side effects (depend on people and also if you use or not cycle support supplements)

Protection needed for a cycle of MethylStenbolone : Cycle support supplements is necessary.

Post Cycle Therapy for a MethylStenbolone cycle : We recommend to do a PCT with SERM ! This is a complete NO answer for an otc pct.

Dosage recommended for a first cycle of MethylStenbolone :

Week 1 : 4-10 mg daily * Week 2-3 : 10-12 mg daily

Dosage recommended for an advanced cycle of MethylStenbolone :

Week 1 : 8-10 mg daily * Week 2-3-4 : 14-20 mg daily

Read & Share reviews on MethylStenbolone (Ultradrol) prohormones

There are plenty of methyl sten prohormones on the market. So we selected a few of the popular methylsten prohormones and we made a personal review for each of them. Just follow the link below : MethylStenbolone (M-Sten) Prohormones Reviews

You might be interested in:  4-Andro (4-DHEA) Prohormone Guide. 1-Andro and 4-Andro combination.


  1. Jordan Patrick June 12, 2014
    • Yehor June 19, 2014
  2. Nate November 11, 2014
  3. romangod November 29, 2014

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