Franck Montagny has been disqualified from 15th place in the Putrajaya ePrix after testing positive for a banned substance.
The Frenchman will not be able to race in all forms of motorsport for a period of two years following a decision from the FIA Anti-Doping Committee (ADC) in Paris.
The ADC found that Montagny tested positive for Benzoylecgonine, a metabolite of cocaine, after being selected for doping control at the Putrajaya ePrix in November 2014.
Montagny, who was provisionally suspended, was found to have violated Article 2.1 of the 2014 FIA Anti-Doping Regulations. In addition to the two-year sanction, which expires on December 23 2016, Montagny has been disqualified from the final classification of the Putrajaya ePrix.
He has 21 days in which to appeal the decision to the Court of Arbitration for Sport.
Montagny finished second in the inaugural race of the FIA Formula E Championship in Beijing last September.