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).   
– Drink a lot of water. This helps to flush the system and keep you healthy.
– Cycle with Clenbuterol to stop side effects.
– Ensure that you consume enough antioxidant. Eating vegetables and fruits are advised as well as taking vitamin C and E supplements.
– The use of Milk thistle is very important. This liver protection herb works by inhibiting the entrance of harmful substances into the liver cells. It also expedites the removal of these potentially harmful elements out of the liver.
– Using NAC is good. This supports liver function and boost the production of I-glutathione. This acts as a powerful antioxidant as well.
– RLA, also acts as a powerful antioxidant and aids in protecting the liver.
In either case, both men and women, Anavar can be used for far longer than most oral anabolic steroids due to its low liver toxicity rating and further as it does not appear to taper off in benefit as fast as many other oral anabolic steroids. The majority of Anavar users will supplement for 6-8 weeks but longer durations of 12 weeks are not uncommon, especially during female contest preparation time. Keep in mind, the leaner you are the greater the results will be, meaning, they will be far more pronounced; for this reason most women will choose Anavar during the latter half of their diet to reap the greatest reward.