Kolobnev in 2006, when he rode for Rabobank. He was signed to Katusha when he gave his positive sample (image credit: Heidas CC BY 2.5) |
Alexandr Kolobnev, aged 30, was 69th place overall when he tested positive during the first week of the race and was prevented from continuing by Team Katusha in accordance with UCI rules. The Russian Cycling Federation claimed after investigation that it had taken into account "mitigating circumstances," the nature of which have not been revealed. The rider voluntarily suspended himself pending investigation, and while B-sample was also subsequently tested and found to contain traces of the substance he escaped formal suspension.
Hydrochlorothiazide is not itself a performance-enhancing substance, but has been used in an attempt to mask the presence of other drugs to allow athletes to pass anti-doping tests.
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