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Table 3 Summary of 'prohibited substances' found in doping controls samples of professional tennis players during 2003-2009 (n = 52).

From: Epidemiological analysis of doping offences in the professional tennis circuit

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