The metabolism of Acetaminophen can be decreased when combined with Lumefantrine. Acetaminophen may increase the anticoagulant activities of Phenindione. The serum concentration of Acetaminophen can be decreased when it is combined with Peginterferon alfa-2b. The serum concentration of Acetaminophen can be increased when it is combined with Netupitant. The metabolism of Acetaminophen can be decreased when combined with Sulfisoxazole. The serum concentration of Silodosin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Ropinirole. The serum concentration of Cerivastatin can be increased when it is combined with Acetaminophen. The serum concentration of Acetaminophen can be increased when it is combined with Abiraterone. The serum concentration of Acetaminophen can be decreased when it is combined with Mitotane. Acetaminophen may increase the hepatotoxic activities of Dasatinib. The serum concentration of Acetaminophen can be increased when it is combined with Aprepitant. Acetaminophen may increase the hepatotoxic activities of Mipomersen. The serum concentration of Tolvaptan can be increased when it is combined with Acetaminophen. The serum concentration of Acetaminophen can be increased when it is combined with Luliconazole. The serum concentration of Bosutinib can be increased when it is combined with Acetaminophen. The serum concentration of Acetaminophen can be increased when it is combined with Lumacaftor. The metabolism of Acetaminophen can be decreased when combined with Sulfamethoxazole. The metabolism of Acetaminophen can be decreased when combined with Bupropion. The metabolism of Acetaminophen can be decreased when combined with Rolapitant. The metabolism of Acetaminophen can be decreased when combined with Ziprasidone. The metabolism of Acetaminophen can be decreased when combined with Leflunomide. The metabolism of Acetaminophen can be decreased when combined with Telaprevir. The metabolism of Acetaminophen can be decreased when combined with Dronedarone. The serum concentration of Ubidecarenone can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Lopinavir. The metabolism of Acetaminophen can be decreased when combined with Omeprazole. Acetaminophen may increase the anticoagulant activities of Warfarin. The serum concentration of Aripiprazole can be decreased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Idelalisib. The metabolism of Acetaminophen can be decreased when combined with Nelfinavir. The metabolism of Acetaminophen can be decreased when combined with Nicotine. The metabolism of Acetaminophen can be decreased when combined with Cyclosporine. The metabolism of Acetaminophen can be decreased when combined with Diphenhydramine. The metabolism of Acetaminophen can be increased when combined with Methohexital. The serum concentration of Acetaminophen can be decreased when it is combined with Phenytoin. The risk or severity of adverse effects can be increased when Ergotamine is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Fluvoxamine. The metabolism of Acetaminophen can be decreased when combined with Quinine. The risk or severity of adverse effects can be increased when Pergolide is combined with Acetaminophen. The serum concentration of Acetaminophen can be increased when it is combined with Osimertinib. The metabolism of Acetaminophen can be decreased when combined with Cimetidine. The serum concentration of Acetaminophen can be decreased when it is combined with Siltuximab. The metabolism of Acetaminophen can be decreased when combined with Fluconazole. The risk or severity of adverse effects can be increased when Isoniazid is combined with Acetaminophen. The serum concentration of Acetaminophen can be decreased when it is combined with Tocilizumab. The metabolism of Acetaminophen can be increased when combined with Barbital. The serum concentration of Topotecan can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Ticagrelor. The serum concentration of Acetaminophen can be decreased when it is combined with Dabrafenib. The metabolism of Acetaminophen can be decreased when combined with Irbesartan. The risk or severity of adverse effects can be increased when Lysergic Acid Diethylamide is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Chloroquine. The metabolism of Acetaminophen can be decreased when combined with Rabeprazole. The metabolism of Acetaminophen can be decreased when combined with Duloxetine. The metabolism of Acetaminophen can be decreased when combined with Sildenafil. The serum concentration of Vincristine can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Indinavir. The serum concentration of Acetaminophen can be decreased when it is combined with St. John's Wort. The metabolism of Acetaminophen can be decreased when combined with Quinidine. The metabolism of Acetaminophen can be decreased when combined with Fluorouracil. The serum concentration of Acetaminophen can be decreased when it is combined with Bosentan. The metabolism of Acetaminophen can be increased when combined with Nevirapine. Acetaminophen may increase the anticoagulant activities of Fluindione. The serum concentration of Acetaminophen can be increased when it is combined with Stiripentol. The metabolism of Acetaminophen can be increased when combined with Secobarbital. The metabolism of Acetaminophen can be decreased when combined with Crizotinib. The metabolism of Acetaminophen can be increased when combined with Rifampicin. The metabolism of Acetaminophen can be decreased when combined with Delavirdine. The metabolism of Acetaminophen can be decreased when combined with Tipranavir. The serum concentration of Rosuvastatin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Tenofovir disoproxil. The metabolism of Acetaminophen can be decreased when combined with Clozapine. The metabolism of Acetaminophen can be decreased when combined with Itraconazole. The serum concentration of Naloxegol can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Valsartan. The serum concentration of Ledipasvir can be increased when it is combined with Acetaminophen. The serum concentration of Acetaminophen can be decreased when it is combined with Cyproterone acetate. Ethanol may increase the hepatotoxic activities of Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Isavuconazonium. The metabolism of Acetaminophen can be increased when combined with Thiamylal. Cholestyramine can cause a decrease in the absorption of Acetaminophen resulting in a reduced serum concentration and potentially a decrease in efficacy. The metabolism of Acetaminophen can be decreased when combined with Fluvastatin. The serum concentration of Acetaminophen can be decreased when it is combined with Enzalutamide. The metabolism of Acetaminophen can be decreased when combined with Clarithromycin. The metabolism of Acetaminophen can be decreased when combined with Terbinafine. The metabolism of Acetaminophen can be decreased when combined with Tamoxifen. The metabolism of Acetaminophen can be decreased when combined with Capecitabine. The metabolism of Acetaminophen can be increased when combined with Pentobarbital. The metabolism of Acetaminophen can be decreased when combined with Boceprevir. The serum concentration of Acetaminophen can be increased when it is combined with Probenecid. The metabolism of Acetaminophen can be increased when combined with Thiopental. The metabolism of Acetaminophen can be increased when combined with Methylphenobarbital. The metabolism of Acetaminophen can be decreased when combined with Clotrimazole. The metabolism of Acetaminophen can be decreased when combined with Nilotinib. The metabolism of Acetaminophen can be decreased when combined with Lobeglitazone. The metabolism of Acetaminophen can be decreased when combined with Gemfibrozil. The risk or severity of adverse effects can be increased when Methylergometrine is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Midostaurin. The metabolism of Acetaminophen can be decreased when combined with Erythromycin. The metabolism of Acetaminophen can be decreased when combined with Atazanavir. The serum concentration of Acetaminophen can be increased when it is combined with Palbociclib. The metabolism of Acetaminophen can be increased when combined with Rifapentine. The serum concentration of Nintedanib can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Theophylline. The metabolism of Acetaminophen can be increased when combined with Phenobarbital. The risk or severity of adverse effects can be increased when Methysergide is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Clobazam. The metabolism of Acetaminophen can be decreased when combined with Thioridazine. The metabolism of Acetaminophen can be decreased when combined with Crisaborole. The serum concentration of Saxagliptin can be decreased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Manidipine. The metabolism of Acetaminophen can be decreased when combined with Ticlopidine. The serum concentration of Acetaminophen can be increased when it is combined with Vemurafenib. The risk or severity of adverse effects can be increased when Acetaminophen is combined with Prilocaine. Acetaminophen may increase the hepatotoxic activities of Sorafenib. The metabolism of Acetaminophen can be decreased when combined with Venlafaxine. The metabolism of Acetaminophen can be decreased when combined with Telithromycin. The metabolism of Acetaminophen can be decreased when combined with Caffeine. The metabolism of Acetaminophen can be decreased when combined with Citalopram. The metabolism of Acetaminophen can be decreased when combined with Amiodarone. The metabolism of Acetaminophen can be increased when combined with Barbexaclone. The metabolism of Acetaminophen can be decreased when combined with Methadone. The metabolism of Acetaminophen can be decreased when combined with Isradipine. The serum concentration of Pravastatin can be increased when it is combined with Acetaminophen. The risk or severity of adverse effects can be increased when Acetaminophen is combined with Sodium Nitrite. The metabolism of Acetaminophen can be decreased when combined with Betaxolol. The metabolism of Acetaminophen can be decreased when combined with Mexiletine. The metabolism of Acetaminophen can be decreased when combined with Dihydroergotamine. The serum concentration of Simvastatin can be increased when it is combined with Acetaminophen.