19-norandrostenedione: The Prohormone of Choice
|19-norandrostenedione: The Prohormone of
has rapidly become the prohormone of choice for non-competitive
trainers looking to enhance overall lean muscle mass
Because of it's relatively low side-effect profile and its overall
effectiveness, 19-norandrostenedione has rapidly become the
prohormone of choice for non-competitive trainers looking to
enhance overall lean muscle mass.
19-norandrostenedione (also known as nor andro, 19- norandro,
and/or 19-nor) is a chemical molecule that's virtually identical to
androstenedione (itself a metabolite of DHEA) with the significant
exception that unlike androstenedione, 19-norandrostenedione lacks
a carbon molecule in the 19th position (hence the "19-nor"
Because of this, 19-norandrostenedione is actually converted to
what's known as nor-testosterone in the liver (while
androstenedione is converted to testosterone). Basically the thing
to remember is that nor-andro converts to nor-testosterone.
While not quite as anabolic as testosterone, nor-
testosterone-often called nandrolone-is still a potent anabolic
molecule in the body.
Nandrolone is chemically the foundation of Deca-Durabolin. "Deca"
has of course been one of the most popular anabolic steroids in the
bodybuilding world for years largely because of its muscle growth
properties and its relative lack of serious side-effects.
Nandrolone is quick to attach itself to natural steroid receptors
in the body. And it's further believed that nandrolone's effects
last longer than even testosterone. The real benefit of nandrolone,
however, may be that while it produces good anabolic effects in the
body, its aromatization to estrogen and its negative androgenic
side-effects are significantly lower than that of testosterone and
testosterone precursors like androstenedione and
So with 19-norandrostenedione, the chances of estrogen induced
side-effects such as gynecomastia (female-like breast tissue) and
DHT complications such as acne, male pattern baldness, and enlarged
prostrate are greatly reduced.
This combination of anabolic properties with reduced estrogen
aromitization and androgenic complications is precisely what makes
19-norandro such an effective, potent, and relatively safe
muscle-building supplement. One important side-note here is that
tested athletes need to be aware that because of its conversion in
the liver to nandrolone, 19-norandrostenedione may indeed lead to
positive on a steroid test for Deca or Nandrolone.
Recommendations: For best results take 100mg-250mg of 19-
norandrostenedione 1-3 times daily. On training days, be sure to
take one dose approximately 30 minutes prior to training.
Cycle: You need to cycle 19-norandrostendione so that your body
doesn't simply adjust to the high levels of nandrolone. Cycle ON
for 4-6 weeks maximum; then cycle OFF for at least 2-4 weeks before
Women: 19-norandrostenedione is one of the few prohormones that
women can benefit from without significant side- effects. Women
should use the lowest effective dosage levels possible. Most of my
female clients report that doses of 100mg per day or less are
sufficient to produce desired results; many start with 50mg on
training days and monitor results closely.
Brand Recommendations: There are several quality 19-
norandrostenedione products on the market. The highest dose product
is AST's popular 19-Nor 250. Bolandione from Syntrax Innovations
and the New Nor Stack Formula from Substrate Solutions are also
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