Propranolol
Erythromycin
Loperamide
Indomethacin
Sumatriptan
Verapamil
Isosorbide
Sildenafil Citrate
Azathioprine
Isosorbide dinitrate
Eplerenone
Irbesartan
Isotretinoin
Itraconazole
Ivermectin
Imipramine