<qa>  What is the name of the inhibitors that are not able to discontinue?- Inability to discontinue any of the following potent P-gp inhibitors cyclosporine, erythromycin, ketoconazole, itraconazole, quinidine, phenobarbital salt with quinidine, ritonavir, valspodar, verapamil or inducers St Johns wort, rifampicin. 