The Athletics Integrity Unit (AIU) has suspended Careen Cheptoek from participating in any athletics competitions for two years over allegations of doping.

In a statement on Monday, February 24, the AIU disclosed that the 31-year-old was suspended after testing positive for a prohibited substance, Methylprednisolone.

Methylprednisolone is a steroid used to treat asthma, allergic reactions, arthritis, inflammatory bowel diseases, and adrenal, blood, or bone marrow conditions.

According to the AIU, investigations against the athlete began on December 15, 2024, when she provided a urine sample moments before participating in the Taipei City Marathon, a World Athletics Gold Label Road Race in Taiwan.