The popularity of Proviron© amongst bodybuilders has been increasing in recent years. Many experienced bodybuilders have in fact come to swear by it, incorporating it effectively in most markedly estrogenic cycles. Due to high demand Proviron© is now very easy to obtain on the black market. Most versions will be manufactured by Schering, and should cost about $1-$2 per 25 mg tab. In many instances this item is obtained via mail order, and here can sell for less than .50 per tab. This drug is packaged in both push-through strips and small glass vials, so do not let this alarm you. There is currently no need to worry about authenticity with this drug, as no counterfeits are known to exist. If money and availability does not prevent it, Arimidex© is actually a much better choice than Proviron© though. This drug was designed specifically as an antiaromatase, and works much more effectively than anything else we have available. Since this item is extremely expensive however, Nolvadex© and Proviron© will no doubt remain to be the "standard" antiestrogen regimen among athletes.