Toure completed a six-month ban in September after failing a drug test earlier this year for ingesting his wife's diet pills.
City began disciplinary proceedings against the Ivory Coast international last week which concluded with a fine.
"Following the conclusion of an internal disciplinary process, Manchester City Football Club can confirm that Kolo Toure has received a fine of six weeks' wages which relates to doping offences committed by him earlier this year," City said in a statement.
"Kolo accepts the decision and he and the club now wish to draw a line under this matter and focus on the season ahead."
Source: AFP
Source: AFP