Prohormone & Supplement Ingredients:

1-4-6 androstatriene-3-17-dione (ATD)

1-4-6 androstatriene-3-17-dione (ATD) is a potent irreversible aromatase inhibitor that inhibits estrogen biosynthesis by permanently binding and inactivating aromatase in adipose and peripheral tissue. It is used to control estrogen synthesis.

ATD is present in some over-the-counter bodybuilding supplements as well as Topical ATD solutions that work transdermally.

While not banned, ATD may cause positive urinalysis results. ATD may cause a positive test for the anabolic steroid boldenone, of which it is a metabolite and is also prohibited in amateur and professional sports which forbids aromatase inhibitors.

A related agent is Exemestane (Aromasin).
Supplements with this ingredient:
Forged: ATD (Test Boosters/Hormone Regulation)
Monster Plexx (Prohormones)

Links to additional information on 1-4-6 androstatriene-3-17-dione (ATD)
Site Specific Androgen Receptor Modulation - Get Big, Stay Big! (Added on 12/30/2010)

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