Kenya’s anti-doping agency suspended Mercy Oketch, the national 400m record holder, over two banned substances. The suspension took effect on Oct. 26, according to Marathon Handbook. The substances are trimetazidine and furosemide, both banned year-round.

Oketch holds the national records indoors and outdoors, set in May 2025 and January 2026. She competed in the World Championships and World Indoor Championships, reaching the semifinals and final, respectively. The suspension does not imply guilt, pending a hearing. Read more culture coverage.

Trimetazidine, used for angina, and furosemide, a diuretic, are both on WADA’s prohibited list. A first violation involving a non-specified substance can lead to a four-year ban, with additional years for multiple substances. This case adds to recent suspensions in Kenya. Related: NYC Marathon Sets Record with Over 60,000 Finishers.

This original Runner World brief is based on reporting from Marathon Handbook. Visit the source for its complete reporting, context and any later corrections.