It is important to keep in mind side-effects are only possible, they are by no means guaranteed or assured and are largely avoidable when used responsibly. However, negative side-effects can occur when steroids are abused and even in some who are sensitive even though they use responsibly they may fall prey to negative outcomes; the same can be said of Aspirin. While many anabolic steroids carry vast possible negative side-effects such as estrogenic related due to aromatization, Anavar does not possess these traits. Anavar does not aromatize making common side-effects such as Gynecomastia little to no concern; Further, as most steroids are very suppressive to natural testosterone production Anavar is very mild in this regard, so mild that one could take Anavar and still produce some natural testosterone. However, some suppression will still exist and the extent will largely be dose dependent.
Anavar (oxandrolone) is a multi-purpose steroid. Some powerlifters claim that this steroid is Number One for gaining strength without water weight. The use of the low androgenic product makes this quite popular with women, also (see below). Research shows that oxandrolone is the one oral anabolic steroid least likely to cause side effects. A study presented in 2003 at the 39th Annual Meeting of the American Society of Clinical Oncology found no interaction with hormone receptors other than the androgen receptor and no stimulation of human tumors with oxandrolone up to 10 times therapeutic doses.