Prohormones: Norandrostenediol - Mind And Muscle

buff guy curlingNorandrostenediol (19-nor-4-androsten-3, 17-diol) is a precursor to nandrolone (“deca”). Norandrostenediol was one of the more effective prohormones released before the 2004 prohormone ban. Norandrostenediol has an anabolic to androgenic ratio of 50/5, and nandrolone has a ratio of 200/10.

With the high anabolic and low androgenic activity of norandrostenediol, the androgenic side effects of this compound are low. Norandrostenediol does convert to some degree to estrogen, but not as much as other prohormones that were released around the same time such as 5 AD and androstenedione. This is considered a “wet” prohormone, and estrogenic side effects are a possibility. Norandrostenediol is not a methylated prohormone, so liver stress is not really a concern with its use.

Norandrostenediol is best used when the goal is to bulk up and add mass rather than to lose body fat. Like many other prohormones, norandrostenediol has a very short half life and should be taken multiple times per day. Because norandrostenediol is not methylated, it should be taken with a fat containing meal to increase absorption.

Norandrostenediol was included in the Anabolic Steroid Control Act of 2004, and was banned as of January 20th, 2005. While Norandrostenediol is no longer available, norDHEA (Norandrostene-3b-Ol, 17-One) is still completely legal and available over the counter. NorDHEA requires a 2-step conversion to nandrolone with norandrostenediol as an intermediate.

To view 100% legal and effective prohormones including norDHEA (5-estren-3b-ol-17-one), click here.


 1. Roberts, S (2009). Anabolic Pharmacology.
 2. Schrader Y, Thevis M, & Schänzer W. (2006). Quantitative determination of metabolic products of 19-norandrostenediol in human plasma using gas chromatography/mass spectrometry. Drug Metabolism and Disposition: the Biological Fate of Chemicals. 34(8), 1328-35.


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