From Longman Dictionary of Contemporary Englishperformance-enhancing drug/product/supplement etcperformance-enhancing drug/product/supplement etca drug or product that is used illegally by people competing in sports events to improve their performance → performance-enhancing
                                                    
                                                Examples from the Corpus
performance-enhancing drug/product/supplement etc• Seven of the 12 winners tested positive for performance-enhancing drugs. 
