The metabolism of Finasteride can be decreased when combined with Atazanavir. The metabolism of Finasteride can be increased when combined with Lumacaftor. The serum concentration of Finasteride can be decreased when it is combined with Mitotane. The metabolism of Finasteride can be decreased when combined with Nilotinib. The metabolism of Finasteride can be decreased when combined with Posaconazole. The serum concentration of Finasteride can be decreased when it is combined with Enzalutamide. The metabolism of Finasteride can be increased when combined with Rifampicin. The metabolism of Finasteride can be increased when combined with Fosphenytoin. The metabolism of Finasteride can be decreased when combined with Verapamil. The metabolism of Finasteride can be decreased when combined with Dihydroergotamine. The metabolism of Finasteride can be decreased when combined with Ketoconazole. The serum concentration of Finasteride can be increased when it is combined with Ceritinib. The metabolism of Finasteride can be increased when combined with Primidone. The metabolism of Finasteride can be decreased when combined with Venlafaxine. The metabolism of Finasteride can be decreased when combined with Fosamprenavir. The metabolism of Finasteride can be decreased when combined with Ranolazine. The serum concentration of Finasteride can be increased when it is combined with Stiripentol. The metabolism of Finasteride can be decreased when combined with Telithromycin. The serum concentration of Finasteride can be decreased when it is combined with Bosentan. The serum concentration of Finasteride can be increased when it is combined with Simeprevir. The metabolism of Finasteride can be decreased when combined with Lovastatin. The metabolism of Finasteride can be decreased when combined with Darunavir. The metabolism of Finasteride can be increased when combined with Carbamazepine. The serum concentration of Finasteride can be increased when it is combined with Ivacaftor. The metabolism of Finasteride can be decreased when combined with Indinavir. The metabolism of Finasteride can be decreased when combined with Idelalisib. The metabolism of Finasteride can be decreased when combined with Telaprevir. The serum concentration of Conivaptan can be increased when it is combined with Finasteride. The metabolism of Finasteride can be decreased when combined with Doxycycline. The metabolism of Finasteride can be decreased when combined with Olaparib. The metabolism of Finasteride can be increased when combined with Phenytoin. The metabolism of Finasteride can be decreased when combined with Fluvoxamine. The metabolism of Finasteride can be decreased when combined with Delavirdine. The metabolism of Finasteride can be decreased when combined with Erythromycin. The metabolism of Finasteride can be decreased when combined with Isradipine. The metabolism of Finasteride can be decreased when combined with Sildenafil. The metabolism of Finasteride can be increased when combined with Nevirapine. The serum concentration of Finasteride can be increased when it is combined with Luliconazole. The serum concentration of Finasteride can be increased when it is combined with Netupitant. The serum concentration of Finasteride can be decreased when it is combined with Tocilizumab. The therapeutic efficacy of Finasteride can be decreased when used in combination with Sarilumab. The metabolism of Finasteride can be decreased when combined with Clemastine. The serum concentration of Finasteride can be increased when it is combined with Palbociclib. The metabolism of Finasteride can be decreased when combined with Atomoxetine. The metabolism of Finasteride can be decreased when combined with Fluconazole. The serum concentration of Finasteride can be increased when it is combined with Osimertinib. The metabolism of Finasteride can be decreased when combined with Lopinavir. The metabolism of Finasteride can be decreased when combined with Boceprevir. The serum concentration of Finasteride can be decreased when it is combined with Vemurafenib. The metabolism of Finasteride can be decreased when combined with Clotrimazole. The serum concentration of Finasteride can be increased when it is combined with Aprepitant. The serum concentration of Finasteride can be increased when it is combined with Fusidic Acid. The serum concentration of Finasteride can be increased when it is combined with Fosaprepitant. The serum concentration of Finasteride can be decreased when it is combined with Deferasirox. The metabolism of Finasteride can be decreased when combined with Saquinavir. The metabolism of Finasteride can be decreased when combined with Cyclosporine. The metabolism of Finasteride can be increased when combined with Rifapentine. The metabolism of Finasteride can be decreased when combined with Imatinib. The metabolism of Finasteride can be decreased when combined with Crizotinib. The metabolism of Finasteride can be decreased when combined with Rucaparib. The metabolism of Finasteride can be decreased when combined with Bortezomib. The serum concentration of Finasteride can be decreased when it is combined with Dabrafenib. The metabolism of Finasteride can be decreased when combined with Voriconazole. The metabolism of Finasteride can be decreased when combined with Nelfinavir. The metabolism of Finasteride can be decreased when combined with Clarithromycin. The metabolism of Finasteride can be increased when combined with Rifabutin. The serum concentration of Finasteride can be increased when it is combined with Mifepristone. The metabolism of Finasteride can be decreased when combined with Ticlopidine. The metabolism of Finasteride can be decreased when combined with Amiodarone. The metabolism of Finasteride can be decreased when combined with Ziprasidone. The metabolism of Finasteride can be decreased when combined with Sulfisoxazole. The metabolism of Finasteride can be decreased when combined with Nefazodone. The metabolism of Finasteride can be decreased when combined with Isavuconazonium. The metabolism of Finasteride can be increased when combined with Phenobarbital. The metabolism of Finasteride can be decreased when combined with Itraconazole. The metabolism of Finasteride can be increased when combined with Pentobarbital. The metabolism of Finasteride can be decreased when combined with Diltiazem. The serum concentration of Finasteride can be decreased when it is combined with Siltuximab. The metabolism of Finasteride can be decreased when combined with Dronedarone. The serum concentration of Finasteride can be decreased when it is combined with St. John's Wort. The serum concentration of Finasteride can be increased when it is combined with Dasatinib. The metabolism of Finasteride can be decreased when combined with Cobicistat.