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).   
Most men who run an Anavar cycle will find 50mg-80mg per day to be sufficient. Higher doses can be used, some may find 100mg per day to be warranted but this is rare; further, doses that approach and surpass the 100mg mark rarely provide any additional benefits if any at all. For most men 6-8 weeks of use towards the end of a cutting cycle will be just about perfect and all the Anavar they will ever need. Of course it is important to remember, if you choose to use this steroid you’re going to pay a high price regarding dollars to milligrams; as such, choose your supply wisely.
Cardiovascular strain is included under the list of Anavar side effects. Cardiovascular strain and negative cholesterol changes are a side effect common among all anabolic steroids, and especially oral anabolic steroids . This involves the reduction of HDL (the good cholesterol) and increases of LDL (the bad cholesterol). The result of such changes involves an increased risk of arteriosclerosis, and the degree to which these changes occur for the worse are usually dose-dependent (with higher doses increasing the negative changes and the risks). Other factors that affect these negative cholesterol changes are: duration of use, and route of administration. In terms of the route of administration, oral anabolic steroids are known for having a reputation as being much worse for their negative impacts on cholesterol in comparison to injectable anabolic steroids. This is because the liver serves to function as the cholesterol processing center for the human body, and the increased hepatotoxicity associated with anabolic steroids will result in even worse negative cholesterol changes. It is important in this case that any user of anabolic steroids no matter the preparation (oral or injectable) take the appropriate precautions to make the proper adjustments in their diet habits that favor positive cholesterol maintenance and changes, especially when running cycles of anabolic steroids , including supplementation with any cardiovascular health support supplements.