The serum concentration of Simvastatin can be increased when it is combined with Tetracycline. The serum concentration of Simvastatin can be decreased when it is combined with Almasilate. The risk or severity of adverse effects can be increased when Nicergoline is combined with Simvastatin. The metabolism of Simvastatin can be increased when combined with Primidone. The serum concentration of Simvastatin can be increased when it is combined with Lepirudin. The serum concentration of Simvastatin can be increased when it is combined with Nilvadipine. The serum concentration of Simvastatin can be increased when it is combined with Candoxatrilat. The metabolism of Simvastatin can be decreased when combined with Sertraline. The serum concentration of Simvastatin can be increased when it is combined with Aldesleukin. The metabolism of Simvastatin can be decreased when combined with Nicardipine. The serum concentration of Simvastatin can be increased when it is combined with Candoxatril. The serum concentration of Simvastatin can be increased when it is combined with Geldanamycin. The serum concentration of Simvastatin can be increased when it is combined with Sulfanilamide. The risk or severity of adverse effects can be increased when Spiramycin is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Ketazolam. The serum concentration of Simvastatin can be increased when it is combined with Posaconazole. The risk or severity of adverse effects can be increased when Bepridil is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Ifosfamide. The serum concentration of Simvastatin can be increased when it is combined with Ezetimibe. The risk or severity of adverse effects can be increased when Nimodipine is combined with Simvastatin. Acipimox may increase the myopathic rhabdomyolysis activities of Simvastatin. The risk or severity of adverse effects can be increased when Tetrahydropalmatine is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Mequitazine. The serum concentration of Simvastatin can be increased when it is combined with Clarithromycin. The risk or severity of adverse effects can be increased when Gallopamil is combined with Simvastatin. The serum concentration of Aripiprazole can be decreased when it is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Cilazapril. The serum concentration of Simvastatin can be increased when it is combined with Dimethyl sulfoxide. The metabolism of Simvastatin can be decreased when combined with Clotrimazole. The serum concentration of Simvastatin can be increased when it is combined with Voriconazole. The metabolism of Simvastatin can be decreased when combined with Atomoxetine. The serum concentration of Simvastatin can be increased when it is combined with Dextropropoxyphene. The serum concentration of Simvastatin can be increased when it is combined with Anastrozole. The metabolism of Simvastatin can be decreased when combined with Lapatinib. The risk or severity of adverse effects can be increased when Butoconazole is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Temsirolimus. The serum concentration of Simvastatin can be increased when it is combined with Alogliptin. The metabolism of Simvastatin can be decreased when combined with Darifenacin. The serum concentration of Simvastatin can be increased when it is combined with Antipyrine. The serum concentration of Simvastatin can be increased when it is combined with Ceritinib. The serum concentration of Simvastatin can be increased when it is combined with Bicalutamide. Gemfibrozil may increase the myopathic rhabdomyolysis activities of Simvastatin. The metabolism of Simvastatin can be increased when combined with Secobarbital. The serum concentration of Simvastatin can be increased when it is combined with Diethylstilbestrol. The serum concentration of Mevastatin can be increased when it is combined with Simvastatin. The metabolism of Simvastatin can be decreased when combined with Isoniazid. The serum concentration of Simvastatin can be decreased when it is combined with Mitotane. The metabolism of Simvastatin can be decreased when combined with Olaparib. The metabolism of Simvastatin can be decreased when combined with Celecoxib. Colchicine may increase the myopathic rhabdomyolysis activities of Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Lidocaine. The serum concentration of Simvastatin can be increased when it is combined with Nelfinavir. The serum concentration of Simvastatin can be increased when it is combined with Sirolimus. The serum concentration of Simvastatin can be increased when it is combined with Tipranavir. The serum concentration of Simvastatin can be increased when it is combined with Iloperidone. The serum concentration of Afatinib can be increased when it is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Netupitant. The risk or severity of adverse effects can be increased when Pregabalin is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Acetaminophen. The serum concentration of Simvastatin can be increased when it is combined with Enasidenib. The serum concentration of Simvastatin can be increased when it is combined with Ulinastatin. The serum concentration of Prucalopride can be increased when it is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Boceprevir. The serum concentration of Simvastatin can be increased when it is combined with Rutin. The serum concentration of Cerivastatin can be increased when it is combined with Simvastatin. The metabolism of Simvastatin can be decreased when combined with Lumefantrine. The serum concentration of Simvastatin can be increased when it is combined with Etoricoxib. The serum concentration of Simvastatin can be increased when it is combined with 4-(2-Aminoethyl)Benzenesulfonyl Fluoride. The serum concentration of Simvastatin can be increased when it is combined with Telaprevir. The metabolism of Simvastatin can be decreased when combined with Doxycycline. The serum concentration of Simvastatin can be decreased when it is combined with Magnesium Trisilicate. The serum concentration of Simvastatin can be increased when it is combined with Gabexate. The serum concentration of Simvastatin can be increased when it is combined with Methazolamide. The risk or severity of adverse effects can be increased when Ravuconazole is combined with Simvastatin. The risk or severity of adverse effects can be increased when Simvastatin is combined with Daptomycin. The risk or severity of adverse effects can be increased when Oxiconazole is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Ethanol. The serum concentration of Simvastatin can be increased when it is combined with Ranitidine. The serum concentration of Simvastatin can be increased when it is combined with Vildagliptin. The serum concentration of Simvastatin can be increased when it is combined with Ivacaftor. The risk or severity of adverse effects can be increased when Isoconazole is combined with Simvastatin. The risk or severity of adverse effects can be increased when Niacin is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Omapatrilat. The serum concentration of Simvastatin can be increased when it is combined with Cyclosporine. The serum concentration of Simvastatin can be increased when it is combined with Temocapril. The risk or severity of adverse effects can be increased when Cilnidipine is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Rivastigmine. The serum concentration of Simvastatin can be increased when it is combined with Ximelagatran. The serum concentration of Everolimus can be increased when it is combined with Simvastatin. The metabolism of Simvastatin can be decreased when combined with Amiodarone. The serum concentration of Simvastatin can be increased when it is combined with Primaquine. The serum concentration of Simvastatin can be increased when it is combined with Fusidic Acid. The serum concentration of Simvastatin can be decreased when it is combined with Efavirenz. The risk or severity of adverse effects can be increased when Azimilide is combined with Simvastatin. The serum concentration of Rifaximin can be increased when it is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Palbociclib. The serum concentration of Simvastatin can be increased when it is combined with Lurasidone. The serum concentration of Simvastatin can be increased when it is combined with Darunavir. The risk or severity of adverse effects can be increased when Prenylamine is combined with Simvastatin. The risk or severity of adverse effects can be increased when Naftopidil is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Saquinavir. Bezafibrate may increase the myopathic rhabdomyolysis activities of Simvastatin. Simvastatin may increase the anticoagulant activities of Fluindione. The serum concentration of Simvastatin can be increased when it is combined with Dalfopristin. The serum concentration of Simvastatin can be increased when it is combined with Tofisopam. The serum concentration of the active metabolites of Fesoterodine can be increased when Fesoterodine is used in combination with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Ubenimex. The serum concentration of Tolvaptan can be increased when it is combined with Simvastatin. The metabolism of Simvastatin can be decreased when combined with Cocaine. The serum concentration of the active metabolites of Dabigatran etexilate can be increased when Dabigatran etexilate is used in combination with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Pergolide. The serum concentration of Simvastatin can be increased when it is combined with Eltrombopag. Simvastatin may increase the hepatotoxic activities of Pazopanib. The metabolism of Simvastatin can be decreased when combined with Irbesartan. The serum concentration of Simvastatin can be increased when it is combined with Danazol. The metabolism of Simvastatin can be decreased when combined with Imipramine. The serum concentration of Simvastatin can be increased when it is combined with Epinephrine. The serum concentration of Simvastatin can be increased when it is combined with Simeprevir. The serum concentration of Simvastatin can be increased when it is combined with Verapamil. The risk or severity of adverse effects can be increased when Perhexiline is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Loratadine. The serum concentration of Simvastatin can be increased when it is combined with Amprenavir. The serum concentration of Brentuximab vedotin can be increased when it is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Captopril. The serum concentration of Simvastatin can be increased when it is combined with Z-Val-Ala-Asp fluoromethyl ketone. The metabolism of Simvastatin can be decreased when combined with Sildenafil. The serum concentration of Simvastatin can be increased when it is combined with Apixaban. The risk or severity of adverse effects can be increased when Amrinone is combined with Simvastatin. The serum concentration of Simvastatin can be increased when it is combined with Bromocriptine. The serum concentration of Simvastatin can be increased when it is combined with Teriflunomide.