Table 3.

Summary of 'prohibited substances' found in doping controls samples of professional tennis players during 2003-2009 (n = 52).

Prohibited Substance	Relative Distribution	Drugs founded in urine analysis
Stimulants (S6)	32.6%	caffeine, ephedrine, cocaine, pemoline, etilefrine, adrafinil, modafinil, isometheptene, nikethamide, methylhexanamine
Cannabis (S8)	23.07%	THC
Anabolics (S1)	11.53%	clenbuterol, stanozolol, nandrolone
Diuretics & Masking Agents (S5)	11.53%	hydrochlorothiazide, finasteride, amiloride, canrenone
β2-agonists (S3)	9.61%	salbutamol, terbutaline
Corticosteroids (S9)	3.84%	betamethasone, triamcinolone, budesonide
Others Infractions	3.84%

Note: caffeine and finasteride are not banned by the 2010-WADA Code