Selv om der ikke er udført kliniske studier, viste in vitro- studier, der undersøger iloprosts potentielle hæmmende virkning på cytochrome- P450- enzymernes aktivitet, at iloprost ikke kan forventes at have nogen relevant hæmmende effekt på lægemiddelmetabolismen via disse enzymer.
Although, clinical studies have not been conducted, in vitro studies investigating the inhibitory potential of iloprost on the activity of cytochrome P450 enzymes revealed that no relevant inhibition of drug metabolism via these enzymes by iloprost have to be expected.