She received a two-year ban from athletics for a failed drug test at the 2009 Nigerian Championships. Chukwuemeka had an intense stand-off with the Athletics Federation of Nigeria. Her "B" sample had several clerical errors, including inconsistencies in bottle numbers and the meeting at which the sample was taken, and she was refused permission to have a representative present at the second testing in South Africa. She accused Nigerian doping officers of corruption and sexual harassment, as well as accusing the federation president Solomon Ogba of coercing Amaka Ogoegbunam to implicate her in drug distribution. Her claims were dismissed by the appeals panel and her two-year ban from the IAAF remained.