The serum concentration of Loperamide can be decreased when it is combined with Mitotane. The metabolism of Loperamide can be increased when combined with Rifampicin. The serum concentration of Bosutinib can be increased when it is combined with Loperamide. The metabolism of Loperamide can be decreased when combined with Crisaborole. The metabolism of Loperamide can be decreased when combined with Ropinirole. The serum concentration of Loperamide can be increased when it is combined with Mifepristone. The metabolism of Loperamide can be decreased when combined with Lovastatin. The metabolism of Loperamide can be decreased when combined with Nefazodone. The serum concentration of Brentuximab vedotin can be increased when it is combined with Loperamide. The serum concentration of Pazopanib can be increased when it is combined with Loperamide. The metabolism of Loperamide can be increased when combined with Pentobarbital. The metabolism of Loperamide can be decreased when combined with Isavuconazonium. The serum concentration of Topotecan can be increased when it is combined with Loperamide. The serum concentration of Conivaptan can be increased when it is combined with Loperamide. The metabolism of Loperamide can be decreased when combined with Lapatinib. The metabolism of Loperamide can be decreased when combined with Cocaine. The serum concentration of Ranolazine can be increased when it is combined with Loperamide. The metabolism of Loperamide can be decreased when combined with Amiodarone. The metabolism of Loperamide can be decreased when combined with Clarithromycin. The metabolism of Loperamide can be decreased when combined with Irbesartan. The serum concentration of Loperamide can be increased when it is combined with Fosaprepitant. The metabolism of Loperamide can be decreased when combined with Losartan. The serum concentration of Prucalopride can be increased when it is combined with Loperamide. The metabolism of Loperamide can be decreased when combined with Lumefantrine. The metabolism of Loperamide can be decreased when combined with Telithromycin. The metabolism of Loperamide can be decreased when combined with Rabeprazole. The serum concentration of Loperamide can be increased when it is combined with Ivacaftor. The metabolism of Loperamide can be decreased when combined with Diltiazem. The metabolism of Loperamide can be decreased when combined with Bupropion. The metabolism of Loperamide can be decreased when combined with Darifenacin. The metabolism of Loperamide can be decreased when combined with Artemether. The metabolism of Loperamide can be decreased when combined with Dosulepin. The serum concentration of Loperamide can be increased when it is combined with Stiripentol. The serum concentration of Loperamide can be increased when it is combined with Palbociclib. The metabolism of Loperamide can be decreased when combined with Quinidine. The metabolism of Loperamide can be decreased when combined with Clotrimazole. The serum concentration of Loperamide can be decreased when it is combined with Dabrafenib. The serum concentration of Everolimus can be increased when it is combined with Loperamide. The serum concentration of Loperamide can be increased when it is combined with Cobicistat. The metabolism of Loperamide can be decreased when combined with Chlorpromazine. The metabolism of Loperamide can be decreased when combined with Lopinavir. The metabolism of Loperamide can be increased when combined with Nevirapine. The metabolism of Loperamide can be decreased when combined with Dronedarone. The metabolism of Loperamide can be decreased when combined with Lorcaserin. The metabolism of Loperamide can be decreased when combined with Eliglustat. The metabolism of Loperamide can be decreased when combined with Clomipramine. The serum concentration of Loperamide can be increased when it is combined with Netupitant. The metabolism of Loperamide can be decreased when combined with Cimetidine. The metabolism of Loperamide can be decreased when combined with Sorafenib. The serum concentration of Afatinib can be increased when it is combined with Loperamide. The metabolism of Loperamide can be decreased when combined with Tranylcypromine. The metabolism of Loperamide can be decreased when combined with Sildenafil. The serum concentration of Edoxaban can be increased when it is combined with Loperamide. The metabolism of Loperamide can be decreased when combined with Clopidogrel. The serum concentration of Loperamide can be decreased when it is combined with Enzalutamide. The metabolism of Loperamide can be decreased when combined with Diphenhydramine. The metabolism of Loperamide can be decreased when combined with Atomoxetine. The metabolism of Loperamide can be decreased when combined with Rosiglitazone. The metabolism of Loperamide can be decreased when combined with Saquinavir. The metabolism of Loperamide can be decreased when combined with Sulfisoxazole. The serum concentration of the active metabolites of Dabigatran etexilate can be increased when Dabigatran etexilate is used in combination with Loperamide. The metabolism of Loperamide can be decreased when combined with Imipramine. The serum concentration of Loperamide can be increased when it is combined with Ceritinib. The metabolism of Loperamide can be decreased when combined with Indinavir. The metabolism of Loperamide can be decreased when combined with Isoniazid. The metabolism of Loperamide can be decreased when combined with Promazine. The metabolism of Loperamide can be increased when combined with Phenobarbital. The metabolism of Loperamide can be decreased when combined with Rolapitant. The metabolism of Loperamide can be decreased when combined with Verapamil. The serum concentration of Loperamide can be decreased when it is combined with Siltuximab. The metabolism of Loperamide can be decreased when combined with Betaxolol. The metabolism of Loperamide can be decreased when combined with Posaconazole. The metabolism of Loperamide can be decreased when combined with Methadone. The metabolism of Loperamide can be decreased when combined with Paroxetine. The serum concentration of Loperamide can be increased when it is combined with Panobinostat. The serum concentration of Loperamide can be increased when it is combined with Dasatinib. The metabolism of Loperamide can be decreased when combined with Fluconazole. The metabolism of Loperamide can be decreased when combined with Thioridazine. The serum concentration of Loperamide can be increased when it is combined with Lumacaftor. The metabolism of Loperamide can be decreased when combined with Teriflunomide. The metabolism of Loperamide can be decreased when combined with Olaparib. The metabolism of Loperamide can be decreased when combined with Nilotinib. The metabolism of Loperamide can be decreased when combined with Manidipine. The serum concentration of Loperamide can be increased when it is combined with Darunavir. The metabolism of Loperamide can be decreased when combined with Telaprevir. The metabolism of Loperamide can be decreased when combined with Bortezomib. The metabolism of Loperamide can be decreased when combined with Terbinafine. The serum concentration of Vincristine can be increased when it is combined with Loperamide. The metabolism of Loperamide can be decreased when combined with Venlafaxine. The metabolism of Loperamide can be decreased when combined with Voriconazole. The metabolism of Loperamide can be decreased when combined with Cinacalcet. The metabolism of Loperamide can be increased when combined with Rifabutin. The serum concentration of Ledipasvir can be increased when it is combined with Loperamide. The serum concentration of Loperamide can be decreased when it is combined with Deferasirox. The metabolism of Loperamide can be decreased when combined with Ritonavir. The metabolism of Loperamide can be decreased when combined with Nelfinavir. The metabolism of Loperamide can be decreased when combined with Delavirdine. The metabolism of Loperamide can be decreased when combined with Rucaparib. The serum concentration of Naloxegol can be increased when it is combined with Loperamide. The metabolism of Loperamide can be decreased when combined with Ketoconazole. The metabolism of Loperamide can be decreased when combined with Pioglitazone. The metabolism of Loperamide can be decreased when combined with Quinine. The serum concentration of Loperamide can be increased when it is combined with Osimertinib. The metabolism of Loperamide can be decreased when combined with Dihydroergotamine. The serum concentration of Colchicine can be increased when it is combined with Loperamide. The metabolism of Loperamide can be decreased when combined with Crizotinib. The serum concentration of Loperamide can be decreased when it is combined with Tocilizumab. The metabolism of Loperamide can be decreased when combined with Nicardipine. The serum concentration of Loperamide can be increased when it is combined with Aprepitant. The serum concentration of Loperamide can be increased when it is combined with Simeprevir. The metabolism of Loperamide can be increased when combined with Carbamazepine. The metabolism of Loperamide can be decreased when combined with Chloroquine. The metabolism of Loperamide can be increased when combined with Primidone. The metabolism of Loperamide can be decreased when combined with Celecoxib. The metabolism of Loperamide can be decreased when combined with Imatinib. The metabolism of Loperamide can be increased when combined with Phenytoin. The metabolism of Loperamide can be decreased when combined with Fluvoxamine. The metabolism of Loperamide can be decreased when combined with Doxycycline. The metabolism of Loperamide can be decreased when combined with Thiotepa. The therapeutic efficacy of Loperamide can be decreased when used in combination with Sarilumab. The metabolism of Loperamide can be increased when combined with Rifapentine. The serum concentration of Loperamide can be increased when it is combined with Quazepam. The metabolism of Loperamide can be increased when combined with Secobarbital. The metabolism of Loperamide can be decreased when combined with Methotrimeprazine. The metabolism of Loperamide can be decreased when combined with Trimethoprim. The metabolism of Loperamide can be decreased when combined with Haloperidol. The serum concentration of Loperamide can be increased when it is combined with Luliconazole. The metabolism of Loperamide can be decreased when combined with Desipramine. The metabolism of Loperamide can be decreased when combined with Topiroxostat. The metabolism of Loperamide can be decreased when combined with Fluoxetine.