The original brand name of oxandrolone was Anavar, which was marketed in the United States and the Netherlands .   This product was eventually discontinued and replaced in the United States with a new product named Oxandrin, which is the sole remaining brand name for oxandrolone in the United States.   Oxandrolone has also been sold under the brand names Antitriol ( Spain ), Anatrophill ( France ), Lipidex ( Brazil ), Lonavar ( Argentina , Australia , Italy ), Protivar, and Vasorome ( Japan ) among others.     Additional brand names exist for products that are manufactured for the steroid black market. 
Superdrol is a decent anabolic steroid, but we would not call it superior or even “Super” as its marketing campaign once implied. What truly makes this steroid special was a group of men who recognized a hole in the steroid law and were able to capitalize on it, and in turn, make a nice profit. Due to the marketing and ease of purchase that existed for a long time, many athletes fell in love with this steroid, and it is a fine steroid, but there’s nothing magical or superior going on. Superdrol is a very basic anabolic steroid.
Oxymetholone well with certain injectable drugs, but do not combine it with the 17-alpha-alkylated steroids, since it will increase the burden on the liver. Oxymetholone often used for so-called “fast start” (anabolic effect begins to manifest itself very quickly), providing the very early stages of the course a significant increase in strength and body weight, while the other drugs in the stack gradually increase the concentration. The combination allows to achieve the best effect, due to the fact that oxymetholone reduces the concentration of sex hormone binding globulin, increasing the free fraction of other hormones, while it performs a synergist for a very large number of drugs. Given that Anapolon has a low affinity for androgen receptors  (bad contacts them) vysokoandrogennye other hormones can act to provide a full length through interaction with these receptors without competing with Anapolon.