The move follows American sprinter Sha’Carri Richardson missing the Tokyo Olympics after testing positive for the substance in June.
The 21-year-old later revealed she had used cannabis to help cope with the death of her biological mother. WADA said the scientific review will begin next year and that cannabis will remain prohibited in 2022. The anti-doping agency said the review is taking place ‘following receipt of requests from a number of stakeholders’.
Richardson won the 100m at the US Olympic trials in Oregon in June where she ran what was then the sixth-fastest women’s time in history in the semi-finals.
The athlete’s positive test came at the Olympic Trials event, which meant her qualification times were expunged and she was given a one-month suspension.
The trials came a week after the death of her biological mother. (BBC)