WADA set to investigate drug found in the hair of three cyclists at 2021 Tour de France: 'We are entitled to ask certain questions'

The riders carried traces of tizanidine, a drug used to treat multiple sclerosis

WADA tizanidine
(Image credit: Getty Images)

Olivier Rabin, scientific director of the World Anti-Doping Agency (WADA), has confirmed the organisation will study the effects of the drug, tizanidine.

Tizanidine is a medication used to treat muscle spasticity due to spinal cord injuries or multiple sclerosis. It is therefore used to relax muscles, but the American Society of Health-System Pharmacists is still not entirely sure how the drug works. 

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Staff Writer

Ryan is a staff writer for Cycling Weekly, having joined the team in September 2021. He first joined Future in December 2020, working across FourFourTwo, Golf Monthly, Rugby World and Advnture's websites, before making his way to cycling. After graduating from Cardiff University with a degree in Journalism and Communications, Ryan earned a NCTJ qualification to further develop as a writer.