On 8 October 2009, Cannavaro failed a drug test. However, Juventus claimed the drugs were medicine for a severe allergic reaction to a wasp sting, and not performance-enhancing. Because of the urgent nature of the treatment, Cannavaro could not ask for permission to CONI in time, which was done immediately afterwards. Apparently while awaiting the conclusion of formalities involved for CONI with granting this permission, he was subjected to the drug test that eventually gave the positive result. CONI later dropped charges against him.