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Steranabol Oxabolone Cypionate steroid profile

Pharmaceutical Name: Oxabolone Cypionate
Chemical Name: 19-norandrost-4-en-4, 17b-ol-3-one/4,17beta-Dihydroxyestr-4-en-3-one
Molecular Weight (Base): 290.4016
Molecular Weight (Ester): 132.1184
Active Life: 14-18 days
Anabolic/Androgenic Ratio: 50-90/20-60

Oxabolone cypionate is a relatively rare steroid that was once produced in Europe for human use. It is no longer produced by pharmaceutical companies; Upjohn and Pharmacia were the primary producers of it previously. However, it appears that this drug would be quite beneficial for those athletes looking for improved strength and/or muscle mass due to its rather unique characteristics.

Oxabolone cypionate is a structural derivative of nandrolone. It differs via the additional 4-hydroxyl group that is attached (1), therefore making oxabolone cypionate 4-hydroxynandrolone. Most users will recognize that due to this compound being derived from nandrolone that this drug exhibits relatively more anabolic properties then androgenic. Interestingly unlike nandrolone, not only does oxabolone cypionate not convert to estrogen but it may in fact act in an aromatase inhibiting capacity. This is due to the 4-hydroxyl group that is attached. In some other drugs this group acts as a potent suicide substrate for the aromatase enzyme (1). It would be reasonable to extrapolate then that this would also be true for oxabolone cypionate. Obviously this could be beneficial to a user that is stacking this drug with others where steps may be needed to be taken to ensure that aromatase inhibition is carried out so as to prevent estrogenic side effects from becoming a problem.

In terms of its potential for building muscle, oxabolone cypionate is a relatively mild drug. This of course is seemingly the trade off for the lack of negative side effects. While massive gains in strength and/or muscle mass may not be able to be produced by this drug, steady lean mass gains should be. This seems to be an attribute of most nandrolone derived compounds and is no different here.

When oxabolone cypionate was originally manufactured the product came in extremely low concentrations. 12.5 milligrams per millilitre was the norm, with the compound being packaged in 2 millilitre amps. This would necessitate that injections of the compound were rather large in volume or else more frequent so as to spread out the volume over multiple injections per week. This would not of course affect the results that were produced by the drug, but rather simply be an annoyance that one would have to deal with while administering oxabolone cypionate.

Use and Dosing of Steranabol Oxabolone Cypionate

For most male users, doses ranging from 300 to 800 milligrams per week are not uncommon. Of course, as the user becomes more and more experienced with anabolic steroids (and hopefully begins carrying more and more muscle mass) these dosages may increase over time. However like most drugs many individuals will have to experiment themselves to find what amount of the drug they need to administer to reap its benefits.

Due to the drug utilizing the cypionate ester, a relatively low frequency is needed for administration of the compound. Most users would find that injections twice per week of oxabolone cypionate should keep their levels of the compound relatively stable. Some users may even go as low as injections once per week. However as always keep in mind that the more frequent that one injects a drug, the more stable the levels of that drug will be. Stable blood levels of a drug may prevent or reduce the severity of some of the side effects associated with a compound.

In terms of a maximum length that one could conceivably run oxabolone cypionate, since it is relatively a non-toxic anabolic and does not exhibit any harsh side effects that would necessitate short cycles of it, users could run the drug for relatively long periods of time. As always however, this should be done within reason and one should not overextend themselves in striving for their goals by staying on one drug for too long.

Females also have found that nandrolone derived drugs can be quite effective while offering relatively mild side effects. Doses ranging from about 40 to 150mgs per week should be adequate for most females to see dramatic gains in muscle size and strength, again with these doses increasing as users try to achieve more and more with the compound.

Risks and Side Effects while using Steranabol Oxabolone Cypionate

Like other nandrolone derived drugs, oxabolone cypionate exhibits rather mild side effects for most users. As was stated earlier, estrogen related side effects are not a concern with this drug and it may in fact help to reduce these side effects as they related to other drugs that may be used concurrently with it.

As for progesterone-like side effects, there appears to be some potential for them to occur as a result of administration of this compound but no more so then other nandrolone derived drugs. Commonly reported sides effects associated with such compounds are such things as acne/oily skin, insomnia, diarrhea, and nausea. These of course are coupled with the common side effects most often associated with anabolic steroids including testicular atrophy and gynecomastia (including lactation in some cases). Hepatoxicity does not appear to be a concern with even heavy use of
oxabolone cypionate (2).

Due to these potential side effects and their resulting from oxabolone cypionate being a progestinic anabolic steroid, some special precautions need to be taken to ensure that side effects do not get out of control. Using compounds such as bromocriptine, cabergoline and/or vitamin b6 have all been shown and reported to help lower prolactin levels. Depending on how sensitive an individual is to this particular drug, they will need varying doses of one of these ancillary drugs. However most users will experience little in the way of negative side effects while administering oxabolone cypionate.

Interestingly it appears that unlike some other nandrolone derived compounds, oxabolone cypionate has a very limited effect on male users� sex drive. This may be due to its relatively more androgenic nature then that of nandrolone itself. This would obviously be a great benefit to those users who find that their sexual function and/or performance is quite diminished while using such drugs as nandrolone phenylpropionate, deca-durabolin, etc. However many users still may want to stack oxabolone cypionate with testosterone to ensure that their sexual function and drive remains normal.


1. Llewellyn, William, Anabolics 2004, 2003-4, Molecular Nutrition, pp. 145-6.

2. Eberhardt G, Mohr J, Oehlert W, Schmidt E, Schmidt FW, Vondrasek P. [Controlled study of the therapeutic effect of B vitamins and an anabolic steroid in chronic hepatitis (author's transl)] Dtsch Med Wochenschr. 1975 Oct 10;100(41):2074-82

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