Sprinters Francisca Koki and Joyce Zakari were each given a four-year ban after being found guilty of using a prohibited substance, Furosemide.
Two-time world cross country Emily Chebet will also serve a four-year ban for the same offence.
Marathon runner Agnes Cheserek tested positive for Norandrosterone and will serve four years while three other distance runners, Bernard Mwendia, Judy Kimuge and Lilian Moraa Mariita, each received two-year bans.