On 16 June 2019, the swimmer Juraj Hlavek (SVK) was tested in-competition during the Open Championships of the Slovak Republic. The analysis performed on his sample indicated the presence of the Methylhexanamine (Class S.6.b Specified Stimulants).

The Disciplinary Commission of the Slovak Swimming Federation imposed a sanction of two (2) years’ ineligibility period on the athlete starting on 11 September 2019, for his first anti-doping rule violation.