Cynostane

Diagram of molecule

Chemical Name(s):

2-cyano-17a-methyl-17b-hydroxy-androstan-3-one
2-cyano-17a-methyl-17b-hydroxy-androst-3-one (incorrect name)
Chemical Formula: C21H31NO2
Molecular Weight: 329
CAS: NA
Q Qatio: NA
Anabolic #: NA
Androgenic #: NA
Oral Bioavailability: Estimated at 40%
AR Binding Affinity: NA
SHBG Binding Affinity: NA
Half Life: NA
Legal Status (US): Not listed as a controlled substance
Average Dose:
40-50mg/day standalone
20-30mg/day when stacking
Average Cycle Length: 4-6 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

2-cyano-dromostolone is a 17aa molecule relatively new to the scene with very few reviews as of yet.

It has a cyano group attached to the 2 position. The chemical structure is the same as methyldrostanolone (Superdrol), except it has a CN group on the 2 position instead of a methyl group. It is a C-17aa steroid and it will be liver toxic. Although, due to the lack of the 4-ene on ring A and lack of 2-methylation, liver toxicity may be reduced relative to a di-methylated steroid such as Superdrol.

So far, feedback is very limited for this compound. However results would be expected to be fairly lean as this compound cannot convert to estrogen. Based on the chemical structure the anabolic potency would appear to be fairly potent with moderate androgenic potency.

At the time of this writing there was only one manufacturer to bring this product to the market and there seems to have been a nomenclature mistake on the labeling for this steroid. The chemical name contains the term “androst”, assuming that there is some sort of ene group on ring A. But there does not seem to be such mention of an ene group on ring A. Therefore, the term androst should be androstan. But if this is the case, the 2-cyano group needs to be stated as alpha or beta. This makes a big difference, since usually C2-alpha groups are significantly more effective than beta.

There are studies about other 2-cyano steroids such as 2-cyano-DHT and 2-cyano-progesterone. In separate studies, one done on dogs, it was seen that both of these 2-cyano steroids caused inhibition of 3b-HSD enzyme. This inhibition would cause severe adrenal suppression. This is a very unsafe inhibition. Whether it occurs in this cyano steroid is unknown, but users need to be aware of this possibility.

Common Clones:

Cynostane by Anabolic Innovation


Related Discussion

The Official Cynostane Thread
Posted by Eric

References

Anabolic Pharmacology
Seth Roberts (2009)

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Methylstenbolone

Diagram of molecule

Chemical Name(s):
2,17a-Dimethyl-17b-hydroxy-5a-androst-1-en-3-one
Chemical Formula: C21H32O2
Molecular Weight: 316.5
CAS: NA
Q Qatio: 3.9
Anabolic #: 660
Androgenic #: 170
Oral Bioavailability: Estimated at 50%
AR Binding Affinity: NA
SHBG Binding Affinity: NA
Half Life: NA
Legal Status (US): Not listed as a controlled substance
Average Dose:
5-20mg/day standalone
1-5mg/day when stacked
Average Cycle Length: 2-4 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

Although this compound cannot convert to estrogen, it will bind strongly to SHBG, thus increasing freely circulating estrogen (and testosterone). While there is a lack of anecdotal feedback from this compound to tell the real world effect this compound may have on causing gyno, experience with related compounds tell us gyno symptoms may occur.

Users should be very careful with methylstenbolone and start out with a very low dose. This compound will likely produce a rapid increase in intracellular water retention by inhibiting 11-beta hydroxylase and building up levels of mineralcorticoids that will encourage sodium and water retention.

Gains upwards of 20-25lbs in 4 weeks are probably possible with this compound. However the liver toxicity issues would likely be the first reason why someone wouldn’t be able to make incredible gains from this compound. For this reason it would be extremely important to pre-condition the liver with a liver protecting supplement prior to cycling this compound, while continuing use throughout the cycle and during PCT.

The strength increases from this compound will likely encourage weight lifting heavier than tendons and joints are prepared to lift. It is recommended to be cautious of this and to naturally build up strength levels prior to cycling this steroid.

Using a low dose of methylstenbolone with a moderate dose of a non-methylated compound would be an acceptable way to try to limit the side-effects from this compound, although caution would still need to be taken for liver health no matter what dose is used.

Because of the strength and weight gain this compound would offer it would likely be best used as part of a bulking cycle.

Availability: 

UltraDrol by Antaeus Labs

Related Discussion

The Official Methylstenbolone Thread
Posted by Eric

References

Anabolic Pharmacology
Seth Roberts (2009)

1,4,6 Androstatriene-dione (ATD)

Diagram of molecule

Chemical Name(s):

Androsta-1,4,6-triene-3,17-dione
1,4,6-androstatriene-3,17-dione
Chemical Formula: C19H22O2
Molecular Weight: 282
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 days
Legal Status (US): Not listed as a controlled substance
Average Dose: 25-100mg/day
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

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

ATD is used for its aromatase inhibiting and testosterone boosting effect. Its effectiveness at lowering estrogen appears to be stronger than 6-oxo. It converts to 1,4,6-testosterone, which would also be expected to cause falsely high readings for a testosterone analysis.

The 1,4,6-testosterone metabolite of ATD can also bind to the androgen receptor (AR) and induce androgenic (or possibly anti-androgenic) effects similar to what is seen from 6-oxo. This would be expected since 1,4,6-testosterone has about one third the binding affinity for the AR, therefore it may interefere with the anabolic or androgenic action of hormones which bind the androgen receptor.

ATD would also be expected to interfere with production of natural testosterone by acting upon the hypothalamus pituitary testicular axis (HPTA), therefore this compound should not be used during post cycle therapy (PCT), however it could successfully be used during a cycle to help keep estrogen in control. Anecdotal reports and animal studies have also shown ATD inhibits libido and general sexual potency.

Common Clones:

Arom-X by Advanced Muscle Science (AMS)
AIFM by Anafit
ATD MAX by Anabolic Formulations
ATD-JET by Molecular Developments
Reversitol by IForce


Related Discussion

The Official 1,4,6 Androstatriene-dione (ATD) Thread
Posted by Eric

References

Effect of an inhibitor of aromatization, 1,4,6 androstatriene-3,17-dione (ATD) on LH release and steroid binding in hypothalamus of adult female rats.

Exp Brain Res. 1986;64(3):407-10.
Slama A, Gogan F, Sarrieau A, Vial M, Rostene W, Kordon C.

Effects of ATD on male sexual behavior and androgen receptor binding: a reexamination of the aromatization hypothesis.
ME Kaplan and MY McGinnis
Horm Behav, Mar 1989; 23(1): 10-26.

Anabolic Pharmacology
Seth Roberts (2009)

Desoxymethyltestosterone (Pheraplex, DMT, Madol)

Diagram of molecule

Chemical Name(s):
17a-methyl-etioallocholan-2-ene-17b-ol
17a-methyl-5a-androst-2-ene-17b-ol
Chemical Formula: C20H32O
Molecular Weight: 288
CAS: NA
Q Qatio: 6.5
Anabolic #: 1200
Androgenic #: 187
Oral Bioavailability: Estimated at 40%
AR Binding Affinity: NA
SHBG Binding Affinity: NA
Half Life: ~9 hours
Legal Status (US): Listed as a controlled substance
Average Dose:
40-60mg/day standalone
10-30mg/day when stacked
Average Cycle Length: 4 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

Desoxymethyltestosterone (DMT) is a 17aa steroid with equal toxicity as other 17aa oral steroids. While nearly all anabolic steroid molecules have a 3-keto group, Desoxymethyltestosterone lacks it, and has a 2-ene structure. This compound is readily active and does not require conversion.

DMT does not aromatize, nor does it appear to have any progestational activity, yet some users still experience gyno symptoms and bloat from this compound. This is likely related to the lack of androgenic potency from this compound (to antagonize the effect of estrogen). DMT may also contribute to gyno by displacing estrogen (and testosterone) from SHBG. It has also been proposed that DMT can inhibit 11b-hydroxylase and thus increase intracellular sodium and water retention by building up mineralcorticoid levels.

Depending on where you look, DMT has been reported to be 2-12 times more anabolic and 0.4-2 times as androgenic as methyltestosterone. It has been proposed that DMT is a naturally occurring substance because it has an almost identical structure to delta 2-androstenol, a naturally occurring pheromone in mammals. However, being a 17aa steroid hormone makes it synthetically altered and not naturally occurring. Either way, it is now a controlled substance in the United States.

Users should expect significant strength increases, weight gain, and bloat. Weight gains upwards of 20lbs in 4-6 weeks are not unheard of with this compound. The most obvious physical side effects will be strong muscular pumps, shortness of breath, high blood pressure, oily skin, and bloating. If users wanted to minimize toxic effect on the liver or other side effects, DMT could be used at doses as low as 10mg/day for a decent effect.

Being that this compound is methylated, it should not be stacked with other methylated compounds. Having moderately low androgenic activity, DMT may negatively affect the libido and erectile function. This side effect could be offset by stacking DMT with testosterone or one of its non-aromatizing metabolites to preserve DHT levels.

Common Clones:

P-Plex by Competitive Edge Labs (CEL)
Phera-Plex by Anabolic Xtreme
Nasty Mass by Purus Labs
Phera-VOL by Engineered Sports Technology (EST)
PheraFLEX by IForce
D-Stianozol by Nutracoastal
Pheradrol by PH Design
P-Max by Growth Labs
Phera-MAX by Generic Labs
Phera-BOL by Juggernaut Nutrition
Phera-Mass by Kilo Sports
Straight Phlexed by Black China Labs

Related Discussion

The Official Desoxymethyltestosterone (Pheraplex, DMT, Madol) Thread
Posted by Eric

References

“Characterisation of the pharmacological profile of desoxymethyltestosterone (Madol), a steroid misused for doping”

P. Diel, A. Friedel, H. Geyer, M. Kamber, U. Laudenbach-Leschowsky, W. Schänzer, M.
Thevis, G. Vollmer and O. Zierau
Toxicology Letters; Volume 169, Issue 1, 28 February 2007, Pages 64-71

1-Androsterone

Diagram of molecule

Chemical Name(s):

1-androsten-3b-ol-17-one
1-Dehydroepiandrosterone
Chemical Formula: C19H28O2
Molecular Weight: NA
CAS: NA
Q Qatio: NA
Anabolic #: NA
Androgenic #: NA
Oral Bioavailability: Estimated at 8%
AR Binding Affinity: NA
SHBG Binding Affinity: NA
Half Life: NA
Legal Status (US): Not listed as a controlled substance
Average Dose:
200-300mg/day Transdermally
400-600mg/day standalone (oral)
200-400mg/day when stacking (oral)
Average Cycle Length: 4-6 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

1- Androsteronetm (1-DHEA) is a non-methylated (non 17aa) pro-steroid that must convert to 1-androstenediol (1-AD), 1-androstenedione (original 1-AD) and/or 1-testosterone to be active. The double bond in the 1st position seems to slightly enhance its ability to resist excretion by the liver.

1-Androsterone occurs naturally in the body, and is a naturally occurring metabolite of DHEA. (2) The 17b-HSD enzyme converts 1-Androsterone to 1-Androstenediol, and the 3b-HSD converts it to 1-Androstenedione. Both of these 1-AD metabolites can then be converted to 1-Testosterone. Although the 1-AD metabolites are known to have some anabolic and androgenic effects on their own, 1-Testosterone is probably where most of the effects come from with this steroid.

There is no conversion to estrogen so users will not experience bloat with this compound, nor will it have a dramatic effect on blood pressure. However one unique side effect that users have reported with this compound is a feeling of lethargy. (It appears that stacking 1-Androsterone with a nuero-active hormone such as DHEA can help reverse this effect)

1-Androsterone (and primarily its metabolites) have relatively potent androgenic effects, therefore gyno is almost never an issue. However, because of the androgenic potency, this compound could pose a mild hair loss risk for those prone to MPB. Because this steroid is non-17aa there should be less concern about it negatively affecting the HDL/LDL ratio.

Results from this compound generally take a couple weeks to be realized. Moderate gains of lean muscle mass and strength can be expected, but users should not expect rapid increases in size or weight with this compound since extra-cellular and intra-cellular water retention are very minimal. This makes the gains from this steroid fairly easy to maintain post cycle.

1-Androsterone will stack well with almost any compound. For more dramatic gains in size and strength it is recommended to stack this compound with an aromatizing steroid or possibly one of the progestational compounds listed elsewhere.

Common Clones:

1-T by Primordial Performance
1-Androsterone by Advanced Muscle Science (AMS)

Related Discussion

The Official 1-Androsterone Thread
Posted by Eric

References

1. 17beta-hydroxy-5alpha-androst-1-en-3-one (1-testosterone) is a potent androgen with anabolic properties.

A Friedel, et al.
Toxicol Lett, Aug 2006; 165(2): 149-55.

2. “Metabolism of 1-Dehydroandrostanes in Man”
Galletti and Gardi, et al.
J Steroid Biochem, 3 (1972), 933-936

norDHEA

Diagram of molecule

Chemical Name(s):

5-estren-3b-ol-17-one
Nordehydroepiandrosterone
Chemical Formula: C18H26O2
Molecular Weight: 274
CAS: NA
Q Qatio: NA
Anabolic #: NA
Androgenic #: NA
Oral Bioavailability: Estimated at 4%
AR Binding Affinity: NA
SHBG Binding Affinity: NA
Half Life: NA
Legal Status (US): Not listed as a controlled substance
Average Dose:
300-600mg/day standalone
200-300mg/day when stacked
Average Cycle Length: 4-6 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

norDHEA is a non-methylated (non-17aa) pro-steroid. (naturally occurring in trace amounts in humans)

norDHEA can convert to the illegal anabolic steroid nandrolone by converting to norandrostenediol/norandrostenedione, and then to nandrolone. Nandrolone is known to have stronger anabolic effects than testosterone, yet weaker androgenic effects.

norDHEA will aromatize to estrogen less than regular DHEA, but because it is a nor compound it lacks strong androgenic metabolites. For instance, after nandrolone interacts with 5a-reductase, the metabolite dihydronandrolone (DHN) is formed, which is a weaker nor-version of DHT.

Ironically, the lack of estrogen conversion from norDHEA is probably balanced by the lack of androgenic potency and progestational effects, which makes the possibility of bloating and experiencing gyno about as likely as with regular DHEA.

One difference between norDHEA and DHEA that should be considered is the fact that norDHEA will have less androgenic effects, which may pose less risk of androgenic related hair loss and/or acne. This may be a smart choice for some men, and a decent choice for women looking for a moderately anabolic compound without much androgenic effect. (to avoid masculinizing side-effects)

Because of the low bio-availability, high doses must be used to notice gains in lean muscle mass and strength. Even with higher doses, the gains will be mild to moderate. Some bloat should be expected from the estrogenic and progestational effects of the nor-steroids. Because this steroid is non-17aa there should be less concern about it negatively affecting the HDL/LDL ratio.

Like the other DHEA derivatives, norDHEA would be useful in a transdermal application since the enzymes needed for the conversions to more powerful metabolites are concentrated in the skin and absorption through the skin using a good transdermal delivery cream could allow for 5-10x higher absorption than oral.

This compound would stack well with almost any other steroid, except those with progestational activity.

Common Clones:

Decavol by Advanced Muscle Science (AMS)


Related Discussion

The Official norDHEA Thread
Posted by Eric

References

Anabolic Pharmacology
Seth Roberts (2009)

Promestanolone

Diagram of molecule

Chemical Name(s):
17a-methyl etioallocholan 17b-ol 3-hydroxyimine
Chemical Formula: C20H33NO2
Molecular Weight: 319.5
CAS: NA
Q Qatio: 2.4
Anabolic #: 380/24
Androgenic #: 158/20
Oral Bioavailability: Estimated at 40%
AR Binding Affinity: NA
SHBG Binding Affinity: High
Half Life: NA
Legal Status (US): Not listed as a controlled substance
Average Dose:
75-100mg/day standalone
50-75mg/day when stacking
Average Cycle Length: 4-6 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

Promestanolone is a 17aa pro-steroid which converts to the illegal anabolic steroid methyl-DHT (mestanolone).

There is no human clinical data on promestanolone, but it is most likely exerting its effects by converting to methyl-DHT. The acidic environment in the stomach would be responsible for converting the 3-hydroxyimine group to a 3-one — thus rapidly changing it to methyl DHT. Therefore results and side-effects would be considered to be very similar to methyl-DHT.

Although DHT can be deactivated in skeletal muscle tissue by 3b-HSD it is likely that this enzyme pathway can be overwhelmed if this compound is taken at a high enough dose. Methyl-DHT has some activity on the progestin receptor, but not to a high degree. It has moderate anabolic but high androgenic effects. It binds strongly to SHBG, therefore free testosterone and estrogen can be expected to rise by displacement from SHBG.

Since this is a 17aa compound, liver toxicity will be an issue with high doses or long term use. For this reason users should consider priming the liver with a liver supporting supplement before and during a Promestanolone cycle. Users will also experience minimal subcutaneous water retention since there is no conversion to estrogen. However, intracellular water and sodium retention will increase by inhibition of 11-beta hydroxylase and mineralocorticoid build up.

Users may also experience an increase in aggression and mood swings which is a common side effect of many steroids with high androgenic value. This makes this compound an excellent pre-lifting or pre-competition steroid.

Promestanolone should produce solid lean gains in muscle as a standalone. However for those looking to add additional bulk to their cycle, promestanolone would stack with with virtually any other non-17aa oral.

Common Clones:

D-Plex by Competetive Edge Labs (CEL)
The ONE by Applied Nutraceuticals


Related Discussion

The Official Promestanolone Thread
Posted by Eric

References

“Effect of 1-alkyl substitution on the biological action in a series of androstanes.”

Cekan Z, Pelc B.
Steroids. 1966 Aug;8(2):209-18.

“Relative binding affinity of anabolic-androgenic steroids: comparison of the binding to the androgen receptors in skeletal muscle and in prostate, as well as to sex hormone-binding globulin.”
Saartok T, Dahlberg E, Gustafsson JA.
Endocrinology. 1984 Jun;114(6):2100-6.

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