Oxandrolone is a synthetic androstane steroid and a 17α-alkylated derivative of DHT.    It is also known as 2-oxa-17α-methyl-5α-dihydrotestosterone (2-oxa-17α-methyl-DHT) or as 2-oxa-17α-methyl-5α-androstan-17β-ol-3-one, and is DHT with a methyl group at the C17α position and the C2 carbon replaced with an oxygen atom.    Closely related AAS include the marketed AAS mestanolone (17α-methyl-DHT), oxymetholone (2-hydroxymethylene-17α-methyl-DHT), and stanozolol (a 2,3- pyrazole A ring -fused derivative of 17α-methyl-DHT) and the never-marketed/ designer AAS desoxymethyltestosterone (3-deketo-17α-methyl-δ 2 -DHT), methasterone (2α,17α-dimethyl-DHT), methyl-1-testosterone (17α-methyl-δ 1 -DHT), and methylstenbolone (2,17α-dimethyl-δ 1 -DHT).   
Oxandro is considered one of the mildest steroids that there is. Oxandro is mildly anabolic and mildly androgenic. Even though it is a C-17 oral, it still has minimal effect on liver values even at higher doses. Anavar (Oxandrolone) also isn’t known by bodybuilders as the steroid for big mass gains. Rather, the mass that is gained by Oxandro will be quality gains. Users of Anavar often note a very good increase in strength. Some bodybuilders compare the strength increases seen by its use to be similar to Oxandrolone on a mg for mg basis, but without the extra side effects! Because of this, and the fact that users won’t gain a lot of weight because of the drug, Var is a very popular drug for powerlifters and sports related athletes.
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