fenproporex fenproporex fenproporex (perphoxene) (n-2-cyanoethylamphetamine) (3-(1-phenylpropan-2-ylamino)propanenitrile) (3-propiononitrile) is a stimulant drug of the phenethylamine and amphetamine chemical classes that was developed in the 1960s. it is used as an appetite suppressant for the treatment of obesity. fenproporexclinical dataahfs/drugs.cominternational drug namesroutes ofadministrationby mouthatc codenonelegal statuslegal status ca: schedule iv de: prescription only (anlage iii for higher doses) us: schedule iv pharmacokinetic datametabolismpartly converted to amphetamine (30 to 60%)excretionurine, mainly as amphetamine, about 5 to 9% unchangedidentifiers iupac name 3-(1-phenylpropan-2-ylamino)propanenitrile cas number16397-28-7 ypubchem cid61810drugbankdb01550 ychemspider55690 yuniiw0194s5foakeggd07947 ychemblchembl2105566 ncomptox dashboard (epa)dtxsid0043921 echa infocard100.036.752 chemical and physical dataformulac12h16n2molar mass188.269 g·mol−13d model (jsmol)interactive image smiles n#cccnc(cc1ccccc1)c inchi inchi=1s/c12h16n2/c1-11(14-9-5-8-13)10-12-6-3-2-4-7-12/h2-4,6-7,11,14h,5,9-10h2,1h3 ykey:iqufsxiqafpimr-uhfffaoysa-n y ny (what is this?) (verify) fenproporex produces amphetamine as a metabolite and was withdrawn in many countries following problems with abuse, but it is still prescribed in some countries. it is sometimes combined with benzodiazepines, antidepressants, and other compounds to create a version of the "rainbow diet pill". fenproporex has never been approved by the us food and drug administration (fda) for sale in the us due to lack of efficacy and safety data. however, in march 2009, the fda warned consumers that it has been detected as an unlabeled component of diet pills available over the internet. fenproporex is designated a schedule iv controlled substance in the us pursuant to the controlled substances act. fenproporex is on the list of substances banned by the world anti-doping agency, and any sportsperson testing positive for the substance faces a ban from competition.