The metabolism of Nicardipine can be decreased when combined with Erythromycin. The metabolism of Cyclosporine can be decreased when combined with Erythromycin. Venlafaxine may increase the QTc-prolonging activities of Erythromycin. Trimethoprim may increase the QTc-prolonging activities of Erythromycin. The metabolism of Tasosartan can be decreased when combined with Erythromycin. The metabolism of Ospemifene can be decreased when combined with Erythromycin. The metabolism of Ipratropium bromide can be decreased when combined with Erythromycin. The metabolism of Levonorgestrel can be decreased when combined with Erythromycin. Erythromycin may increase the QTc-prolonging activities of Anagrelide. The metabolism of Cyclophosphamide can be decreased when combined with Erythromycin. The metabolism of Grazoprevir can be decreased when combined with Erythromycin. The metabolism of Levobupivacaine can be decreased when combined with Erythromycin. The metabolism of Tiagabine can be decreased when combined with Erythromycin. The serum concentration of Dihydroergotamine can be increased when it is combined with Erythromycin. The metabolism of Nifedipine can be decreased when combined with Erythromycin. The metabolism of Cocaine can be decreased when combined with Erythromycin. The metabolism of Aminophenazone can be decreased when combined with Erythromycin. The serum concentration of Salmeterol can be increased when it is combined with Erythromycin. The metabolism of Erythromycin can be decreased when combined with Delavirdine. The metabolism of Cholecalciferol can be decreased when combined with Erythromycin. The metabolism of Asenapine can be decreased when combined with Erythromycin. The metabolism of Pimecrolimus can be decreased when combined with Erythromycin. The metabolism of Erythromycin can be decreased when combined with Clemastine. The metabolism of Perospirone can be decreased when combined with Erythromycin. The metabolism of Chenodeoxycholic acid can be decreased when combined with Erythromycin. Mefloquine may increase the QTc-prolonging activities of Erythromycin. The metabolism of Flutamide can be decreased when combined with Erythromycin. The metabolism of Glipizide can be decreased when combined with Erythromycin. The metabolism of Raloxifene can be decreased when combined with Erythromycin. The serum concentration of Ulipristal can be increased when it is combined with Erythromycin. The metabolism of Niguldipine can be decreased when combined with Erythromycin. The metabolism of Amlodipine can be decreased when combined with Erythromycin. The metabolism of Rabeprazole can be decreased when combined with Erythromycin. The metabolism of Lidocaine can be decreased when combined with Erythromycin. Erythromycin may increase the QTc-prolonging activities of Gemifloxacin. The metabolism of Ketazolam can be decreased when combined with Erythromycin. Erythromycin may increase the QTc-prolonging activities of Quinidine. The metabolism of Astemizole can be decreased when combined with Erythromycin. The metabolism of Erythromycin can be decreased when combined with Idelalisib. Vilanterol may increase the QTc-prolonging activities of Erythromycin. The serum concentration of Cabergoline can be increased when it is combined with Erythromycin. The metabolism of Etoricoxib can be decreased when combined with Erythromycin. The metabolism of Sertindole can be decreased when combined with Erythromycin. Erythromycin may increase the QTc-prolonging activities of Sotalol. The metabolism of Alogliptin can be decreased when combined with Erythromycin. Arformoterol may increase the QTc-prolonging activities of Erythromycin. The metabolism of Temazepam can be decreased when combined with Erythromycin. The serum concentration of Vardenafil can be increased when it is combined with Erythromycin. The metabolism of Vismodegib can be decreased when combined with Erythromycin. The metabolism of Benzphetamine can be decreased when combined with Erythromycin. The metabolism of Mianserin can be decreased when combined with Erythromycin. The serum concentration of Vilazodone can be increased when it is combined with Erythromycin. The serum concentration of Aripiprazole can be increased when it is combined with Erythromycin. The metabolism of Pregabalin can be decreased when combined with Erythromycin. The serum concentration of Phenprocoumon can be increased when it is combined with Erythromycin. The metabolism of Cyclobenzaprine can be decreased when combined with Erythromycin. Goserelin may increase the QTc-prolonging activities of Erythromycin. The serum concentration of Nintedanib can be increased when it is combined with Erythromycin. The metabolism of Dexamethasone can be decreased when combined with Erythromycin. The metabolism of Carbinoxamine can be decreased when combined with Erythromycin. The serum concentration of Rivaroxaban can be increased when it is combined with Erythromycin. The metabolism of Alosetron can be decreased when combined with Erythromycin. The metabolism of Risedronate can be decreased when combined with Erythromycin. Foscarnet may increase the QTc-prolonging activities of Erythromycin. The metabolism of Modafinil can be decreased when combined with Erythromycin. The metabolism of Erythromycin can be decreased when combined with Cobicistat. The metabolism of Norgestrel can be decreased when combined with Erythromycin. The metabolism of Cerivastatin can be decreased when combined with Erythromycin. Erythromycin may increase the QTc-prolonging activities of Telavancin. The metabolism of Cortisone acetate can be decreased when combined with Erythromycin. The serum concentration of Budesonide can be increased when it is combined with Erythromycin. The metabolism of Fulvestrant can be decreased when combined with Erythromycin. The metabolism of Voxilaprevir can be decreased when combined with Erythromycin. The metabolism of Nitrendipine can be decreased when combined with Erythromycin. The metabolism of Ivermectin can be decreased when combined with Erythromycin. The serum concentration of Erythromycin can be increased when it is combined with Stiripentol. The metabolism of Cevimeline can be decreased when combined with Erythromycin. The serum concentration of Terfenadine can be increased when it is combined with Erythromycin. The metabolism of Reboxetine can be decreased when combined with Erythromycin. The metabolism of Tesmilifene can be decreased when combined with Erythromycin. The serum concentration of Fexofenadine can be increased when it is combined with Erythromycin. The metabolism of Diazepam can be decreased when combined with Erythromycin. The risk or severity of adverse effects can be increased when Metergoline is combined with Erythromycin. The metabolism of Bezafibrate can be decreased when combined with Erythromycin. The metabolism of Abiraterone can be decreased when combined with Erythromycin. The therapeutic efficacy of Clindamycin can be decreased when used in combination with Erythromycin. The metabolism of Erythromycin can be increased when combined with Fosphenytoin. Galantamine may increase the QTc-prolonging activities of Erythromycin. The metabolism of Guanfacine can be decreased when combined with Erythromycin. The serum concentration of Halofantrine can be increased when it is combined with Erythromycin. The metabolism of Epinastine can be decreased when combined with Erythromycin. The metabolism of Isosorbide Dinitrate can be decreased when combined with Erythromycin. The metabolism of Daunorubicin can be decreased when combined with Erythromycin. The metabolism of Amrinone can be decreased when combined with Erythromycin. Erythromycin may increase the QTc-prolonging activities of Primaquine. Thiothixene may increase the QTc-prolonging activities of Erythromycin. The metabolism of Nilotinib can be decreased when combined with Erythromycin. The metabolism of Tamsulosin can be decreased when combined with Erythromycin. The risk or severity of adverse effects can be increased when Erythromycin is combined with Temsirolimus. The serum concentration of Pitavastatin can be increased when it is combined with Erythromycin. The metabolism of Antipyrine can be decreased when combined with Erythromycin. The metabolism of Flunisolide can be decreased when combined with Erythromycin. The metabolism of Clobazam can be decreased when combined with Erythromycin. The metabolism of Erythromycin can be decreased when combined with Nelfinavir. Desipramine may increase the QTc-prolonging activities of Erythromycin. The metabolism of Erythromycin can be increased when combined with Pentobarbital. The metabolism of Celiprolol can be decreased when combined with Erythromycin. The metabolism of Erythromycin can be decreased when combined with Doxycycline. The metabolism of Cabozantinib can be decreased when combined with Erythromycin. The serum concentration of Ivacaftor can be increased when it is combined with Erythromycin. The metabolism of Hexobarbital can be decreased when combined with Erythromycin. Erythromycin may increase the QTc-prolonging activities of Dolasetron. The risk or severity of adverse effects can be increased when Methysergide is combined with Erythromycin. The metabolism of Trimethadione can be decreased when combined with Erythromycin. The metabolism of Sulfadiazine can be decreased when combined with Erythromycin. The metabolism of Aliskiren can be decreased when combined with Erythromycin. The metabolism of Zomepirac can be decreased when combined with Erythromycin. The metabolism of Donepezil can be decreased when combined with Erythromycin. Tizanidine may increase the QTc-prolonging activities of Erythromycin. Erythromycin may decrease the antiplatelet activities of Clopidogrel. The metabolism of Zonisamide can be decreased when combined with Erythromycin. The metabolism of Lorcaserin can be decreased when combined with Erythromycin. The metabolism of Mibefradil can be decreased when combined with Erythromycin. The metabolism of Clorazepate can be decreased when combined with Erythromycin. The metabolism of Erythromycin can be decreased when combined with Ketoconazole. The metabolism of Macitentan can be decreased when combined with Erythromycin. The metabolism of Pergolide can be decreased when combined with Erythromycin. Erythromycin may increase the QTc-prolonging activities of Moxifloxacin. The metabolism of Pyrazinamide can be decreased when combined with Erythromycin. The metabolism of Podofilox can be decreased when combined with Erythromycin.