What are the main sports drugs?

At the moment, there are four drugs which have been making the news.

EPO  Epoietin alfa is a drug which increases the amount of red blood cells in your body. These carry oxygen round your body. The more oxygen you have in your body, the easier it is to do exercise. Read more

Nandrolone This is a type of steroid. It increases the size of your muscles. It is hard to detect, because it can be made in the body naturally.

THG Tertrahydrogestrione is a type of anabolic steroid. It increases the size of your muscles. Read more

Modafinil This is a drug used to treat narcolepsy, which is being used by athletes because it fights tiredness. some experts also believe that it is being used to cove-up over drugs that htey might be taking, such as THG.