Nigerian sprinter Blessing Okagbare has been charged with three offences by the Athletics Integrity Unit (AIU).
Following an out-of-competition test on 19 July, the 32-year-old was suspended during the Tokyo Olympics after testing positive for a human growth hormone.
Okagbare later tested positive for another banned substance, recombinant erythropoietin (EPO), which increases red blood cell count.
She has also been charged for not co-operating with the AIU’s investigation.
The AIU alleges Okagbare failed to comply with a formal requirement to produce relevant documents, records and electronic storage devices to the investigation.
Okagbare had won her 100m heat in Tokyo before being pulled out of the Olympics.
The Nigerian has denied all the charges.