Methylepitiostanol (Epistane)

Diagram of molecule

Chemical Name(s):

2a,3a-epithio-17a-methyl-etioallocholan-17b-ol
2a,3a-epithio-17a-methyl-5a-androstan-17b-ol
Chemical Formula: C20H30OS
Molecular Weight: 320.5
CAS: NA
Q Qatio: 12
Anabolic #: 1,100
Androgenic #: 91
Oral Bioavailability: Estimated at 40%
AR Binding Affinity: NA
SHBG Binding Affinity: NA
Half Life: ~6 hours
Legal Status (US): Not listed as a controlled substance
Average Dose:
40-50mg/day standalone
10-20mg/day when stacked
Average Cycle Length: 4-6 weeks
Stimulator
Inhibitor

-5
-4
-3
-2
-1

0
1
2
3
4
5

Muscle Gain

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-5
-4
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-1

0
1
2
3
4
5

Strength Gain

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-5
-4
-3
-2
-1

0
1
2
3
4
5

Fat Gain (negative indicates fat loss)

[][]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Water Retention (extra-cellular bloat)

[][]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Aggression

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Libido

[][]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Acne

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Hair Loss

[][]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Prostate Enlargement

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-5
-4
-3
-2
-1

0
1
2
3
4
5

Liver Toxicity

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-5
-4
-3
-2
-1

0
1
2
3
4
5

Lethargy

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-5
-4
-3
-2
-1

0
1
2
3
4
5

Characteristics

Methylepitiostanol is a methylated version of the steroid Epitiostanol. It is readily active and does not require conversion. Under the influence of heat methylepitiostanol readily breaks down to 17a-Methyl-androstan-2-en-17b-ol (DMT), a now illegal anabolic steroid.

It does not aromatize, however it is possible that methylepitiostanol may offset estrogen and testosterone from SHBG thus increase the risk of gyno for certain individuals with high SHBG levels. Gyno symptoms from this compound may also be a result of this compounds inability to form a potent androgen such as DHT (to antagonize the effects of estrogen). However, in other cases methylepitiostanol can be used to prevent or reduce gynecomastia from an estrogenic steroid by acting as an aromatase inhibitor to keep estrogen down.

It is a DHT derivative with a fairly moderate androgenic value so the chances of hair loss may be increased in certain sensitive users. Swelling of the prostate may also become an issue. The powerful estrogen suppressing action of this steroid and its 17aa stucture will cause it to negatively influence the cholesterol profile by lowering HDL and increasing LDL. It has also been reported to cause stiff joints, possibly related to its suppressive effect on estrogen levels.

Anecdotal reports of appetite suppression and general fatigue would lead one to believe that the liver stress from this 17aa compound is rather severe. For this reason it is recommended to use a liver protecting supplement prior to and during the use of this steroid.

Methylepitiostanol has a strong anabolic action that will lead to quick gains in lean muscle mass and strength with very little bloat. The gains will appear with minimal fat gain and increased vascularity.

Because methylepitiostanol can negatively affect joint comfort it is recommended to be stacked with an aromatizing or progestational compound. However, it is not recommended to stack this steroid with another 17aa oral.

Common Clones:

Epistane by Innovative Body Enhancement (IBE)
Havoc by Primaforce
Havoc by Recomp Performance Nutrition (RPN)
Epi-MAX by Anabolic Formulations
M14-E by Purus Labs
Methyl-E by Engineered Sports Technology (EST)
E-Max by Juggernaut Nutrition
E-Stane by Competitive Edge Labs (CEL)
Hemaguno by Spectra Force Research
Hemapolin by Starmark Labs
Epi-Mass by Armour Nutrition
Epidrol by Genera Labs
Methyl Freak by Rockhard Formulations
Epistrong by Mrsupps


Related Discussion

The Official Methylepitiostanol (Epistane) Thread
Posted by Eric

References

“2{alpha},3{alpha}-Epithio-5{alpha}-androstan-17ß-yl 1-Methoxycyclopentyl Ether in the Treatment of Advanced Breast Cancer —A Preliminary Clinical Trial”

SOICHI KUMAOKA, M.D., OSAMU TAKATANI, M.D., MINORU YOSHIDA, M.D., SHIGETO MIURA, M.D., TETSUTO TAKAO, M.D., YÜJI HAMANAKA, M.D., MASARU IZUO, M.D. and TADAKAZU OKADA, M.D.
Japanese Journal of Clinical Oncology 4:65-68 (1974)

“Inhibited growth in vivo of a mouse pregnancy-dependent mammary tumor (TPDMT-4) by an antiestrogen, 2alpha, 3alpha-epithio-5alpha-androstan-17beta-ol (10275-S).”
Matsuzawa A, Yamamoto T.Cancer Res. 1976 May;36(5):1598-606.

“Antitumor Effect of Two Oral Steroids, Mepitiostane and Fluoxymesterone, on a Pregnancy-dependent Mouse Mammary Tumor (TPDMT-4)1”
Akio Matsuzawa and Tadashi Yamamoto
Cancer Research 37, 4408-4415, December 1, 1977

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Formestane

Diagram of molecule

Chemical Name(s):

4-Hydroxyandrost-4-ene-3, 17-dione
4-hydroxy-4-androstene-3,17-dione
4-Hydroxyandrostenedione
Chemical Formula: C19H26O3
Molecular Weight: 302
CAS: NA
Q Qatio: NA
Anabolic #: NA
Androgenic #: NA
Oral Bioavailability: Estimated at 4%
AR Binding Affinity: NA
SHBG Binding Affinity: NA
Half Life: 2-3 hours oral, Transdermal: Varies by matrix
Legal Status (US): Not listed as a controlled substance
Average Dose:
Aromatase inhibition
100-200mg/day (transdermal)
150-250mg/day (oral)

Anabolic effects
800-1000mg/day (oral)

Average Cycle Length: 4-8 weeks

Stimulator
Inhibitor

-5
-4
-3
-2
-1

0
1
2
3
4
5

Muscle Gain

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Strength Gain

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Fat Gain (negative indicates fat loss)

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Water Retention (extra-cellular bloat)

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Aggression

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Libido

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Acne

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Hair Loss

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Prostate Enlargement

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Liver Toxicity

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Lethargy

[]
-5
-4
-3
-2
-1

0
1
2
3
4
5

Characteristics

Formestane is a steroidal aromatase inhibitor, known as a suicidal inhibitor because it permanently binds to the aromatase enzyme.

Formestane was originally used as an injectable for breast cancer patients, but due to its possible androgenic effects it has largely been replaced by non-steroidial AIs in the medical community. Most of its use is now is limited to the bodybuilding community since it is available as a legal dietary supplement for reducing estrogen and increasing testosterone production.

Although formestane can effectively reduce estrogen through oral consumption, its low oral bioavailability has lead to the development of several transdermal based products (which appear to offer higher efficacy at a lower dose).

Relative to 6-oxo and ATD, Formestane is a more potent aromatase inhibitor, which appears to effectively reduce natural estrogen levels by as much as 50% within several days (while higher doses may further suppress estrogen). Because of formestanes potent ability at reducing estrogen it will tend to reduce HDL levels, while increasing LDL levels, thus harming the cholesterol profile. For this reason, it is recommended to limit cycles of formestane to 8 weeks max.

Because formestane also has a strong affinity for the 5a-reductase enzyme it will reduce DHT levels in the body by effectively competing with testosterone for the 5a-reductase.

Formestane converts to the active androgen 4-hydroxytestosterone which has about half the anabolic potency, and about 25% of the androgenic potency as testosterone. This would suggest that fairly high doses of formestane (800-1000mg/day) could lead to some level of anabolic enhancement (although the amount required for this would surely lead to undesirably low estrogen levels).

Formestane is successfully used as a standalone during re-composition cycles to help reduce “bloat” and fat storage. It can also be used as an anti-estrogen to counter aromatization of aromatizing steroids.

Common Clones:

Formestane by Primordial Performance
Formex by Innovative Body Enhancement (IBE)
Formestane by Competitive Edge Labs (CEL)
Formadex by BCS LABS

Related Discussion

The Official Formestane Thread
Posted by Eric

References

Anabolic Pharmacology
Seth Roberts (2009)

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