Brentford midfielder Alan Judge has been reprimanded by the Football Association after breaching anti-doping regulations.
The 27-year-old has also been warned about his future conduct and will be target tested for the next two years.
Judge denied the charge after the presence of Salbutamol, which is used via an asthma inhaler, was found in his sample, with the FA issuing a stern warning during a hearing last Wednesday.
A Brentford club statement read: "Alan Judge has been found by the FA to have committed an anti-doping violation related to his therapeutic use of an asthma inhaler and issued with a warning.
"Alan has suffered from exercise-induced asthma since he was a child and was given permission to use the inhaler. Following a match last August, Alan's levels of salbutamol from his inhaler use were found to be slightly above the threshold. However in mitigation, he provided a full explanation of the circumstances surrounding this.
"The FA found the case proven due to the level of salbutamol but acknowledged Alan's strong arguments in mitigation by issuing a decision which confirmed that he demonstrated 'no significant fault or negligence'."
A one-time capped Republic of Ireland international, Judge featured 40 times for Championship outfit Brentford last season and found the net 14 times.