The 2010 and 2013 gold medalist Emily Chebet is among seven athletes suspended by Athletics Kenya for failing drugs tests.
The two-time world cross country champion was given a four-year ban after testing positive for the diuretic furosemide.
Also banned by The Professional Athletes Association of Kenya (PAAK) has also issued 4 year bans to 400m runner Joyce Zakary and 400m hurdler Koki Manunga, who tested positive for furosemide at the World Championships in Beijing in August.
Agnes Jepkosgei, Bernard Mwendia, Judy Jesire Kimuge and Lilian Moraa Marita received two-year doping bans.
The World Anti-Doping Agency recently announced that Kenya has been ordered to explain its doping controls, while the PAAK have issued a plea for more help to help tackle the problem.
“Doping has not been accorded the seriousness it deserves by authorities in Kenya,” a PAAK statement said.
The seven brings the number of Kenyan athletes banned for doping to 43 with all but three having been tested positive in the last three years.
Those already banned include the winner of the Boston and Chicago marathons, Rita Jeptoo.