The metabolism of Acetaminophen can be decreased when combined with Haloperidol. The metabolism of Acetaminophen can be decreased when combined with Ticlopidine. The metabolism of Acetaminophen can be increased when combined with Thiamylal. The metabolism of Acetaminophen can be decreased when combined with Topiroxostat. The metabolism of Acetaminophen can be increased when combined with Rifabutin. The metabolism of Acetaminophen can be decreased when combined with Telaprevir. The metabolism of Acetaminophen can be decreased when combined with Indinavir. The risk or severity of adverse effects can be increased when Dapsone is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Lapatinib. The metabolism of Acetaminophen can be increased when combined with Barbexaclone. The metabolism of Acetaminophen can be decreased when combined with Duloxetine. The metabolism of Acetaminophen can be decreased when combined with Dronedarone. The metabolism of Acetaminophen can be decreased when combined with Zucapsaicin. The metabolism of Acetaminophen can be decreased when combined with Betaxolol. The metabolism of Acetaminophen can be decreased when combined with Artemether. The metabolism of Acetaminophen can be increased when combined with Amobarbital. The serum concentration of Prucalopride can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Idelalisib. The serum concentration of Cerivastatin can be increased when it is combined with Acetaminophen. The serum concentration of Acetaminophen can be decreased when it is combined with Dabrafenib. The risk or severity of adverse effects can be increased when Nitric Oxide is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Dihydroergotamine. The metabolism of Acetaminophen can be decreased when combined with Ropinirole. The metabolism of Acetaminophen can be decreased when combined with Rosiglitazone. The serum concentration of Acetaminophen can be increased when it is combined with Aprepitant. The serum concentration of Acetaminophen can be increased when it is combined with Fusidic Acid. The serum concentration of Ubidecarenone can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Trimethoprim. The metabolism of Acetaminophen can be decreased when combined with Diphenhydramine. The metabolism of Acetaminophen can be decreased when combined with Valsartan. The metabolism of Acetaminophen can be decreased when combined with Cinacalcet. The metabolism of Acetaminophen can be decreased when combined with Paroxetine. The metabolism of Acetaminophen can be decreased when combined with Theophylline. Acetaminophen may increase the hepatotoxic activities of Imatinib. The metabolism of Acetaminophen can be increased when combined with Phenobarbital. The metabolism of Acetaminophen can be decreased when combined with Tenofovir disoproxil. The metabolism of Acetaminophen can be increased when combined with Methylphenobarbital. Acetaminophen may increase the anticoagulant activities of Phenindione. The metabolism of Acetaminophen can be decreased when combined with Bortezomib. The metabolism of Acetaminophen can be decreased when combined with Desipramine. The metabolism of Acetaminophen can be decreased when combined with Sertraline. Acetaminophen may increase the anticoagulant activities of Ethyl biscoumacetate. The serum concentration of Tolvaptan can be increased when it is combined with Acetaminophen. 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 Isavuconazonium. The metabolism of Acetaminophen can be decreased when combined with Crisaborole. The metabolism of Acetaminophen can be decreased when combined with Lopinavir. The serum concentration of Doxorubicin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Cocaine. 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 Rucaparib. The serum concentration of Acetaminophen can be increased when it is combined with Lumacaftor. The serum concentration of Acetaminophen can be decreased when it is combined with Phenytoin. The serum concentration of Everolimus can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Omeprazole. The metabolism of Acetaminophen can be decreased when combined with Caffeine. The metabolism of Acetaminophen can be decreased when combined with Nilotinib. The serum concentration of Acetaminophen can be increased when it is combined with Luliconazole. The metabolism of Acetaminophen can be decreased when combined with Tipranavir. The metabolism of Acetaminophen can be decreased when combined with Fluoxetine. Acetaminophen may increase the anticoagulant activities of Phenprocoumon. The serum concentration of Acetaminophen can be decreased when it is combined with Enzalutamide. Acetaminophen may increase the anticoagulant activities of Fluindione. The metabolism of Acetaminophen can be decreased when combined with Fluvoxamine. The metabolism of Acetaminophen can be decreased when combined with Lidocaine. The serum concentration of Edoxaban can be increased when it is combined with Acetaminophen. The serum concentration of Acetaminophen can be increased when it is combined with Probenecid. The metabolism of Acetaminophen can be decreased when combined with Sildenafil. The metabolism of Acetaminophen can be decreased when combined with Clotrimazole. The metabolism of Acetaminophen can be increased when combined with Rifampicin. The metabolism of Acetaminophen can be decreased when combined with Ketoconazole. The serum concentration of Acetaminophen can be decreased when it is combined with Tocilizumab. Acetaminophen may increase the hepatotoxic activities of Sorafenib. The serum concentration of Acetaminophen can be increased when it is combined with Metyrapone. The serum concentration of Mevastatin can be increased when it is combined with Acetaminophen. The risk or severity of adverse effects can be increased when Cabergoline is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Clozapine. The serum concentration of Acetaminophen can be increased when it is combined with Ivacaftor. The metabolism of Acetaminophen can be decreased when combined with Chloroquine. The serum concentration of Acetaminophen can be decreased when it is combined with Deferasirox. The metabolism of Acetaminophen can be decreased when combined with Lumefantrine. The serum concentration of Acetaminophen can be decreased when it is combined with Cyproterone acetate. The metabolism of Acetaminophen can be decreased when combined with Sulfadiazine. The metabolism of Acetaminophen can be decreased when combined with Cyclosporine. The serum concentration of Acetaminophen can be decreased when it is combined with Teriflunomide. The serum concentration of Topotecan can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Imipramine. The metabolism of Acetaminophen can be decreased when combined with Eliglustat. The serum concentration of Acetaminophen can be decreased when it is combined with Siltuximab. The serum concentration of Acetaminophen can be increased when it is combined with Mifepristone. The metabolism of Acetaminophen can be decreased when combined with Methotrimeprazine. The metabolism of Acetaminophen can be decreased when combined with Rabeprazole. Acetaminophen may increase the anticoagulant activities of Warfarin. The metabolism of Acetaminophen can be decreased when combined with Thioridazine. The metabolism of Acetaminophen can be decreased when combined with Lobeglitazone. The serum concentration of Acetaminophen can be increased when it is combined with Cobicistat. The metabolism of Acetaminophen can be decreased when combined with Metoprolol. The metabolism of Acetaminophen can be decreased when combined with Ziprasidone. The metabolism of Acetaminophen can be decreased when combined with Darifenacin. The risk or severity of adverse effects can be increased when Lisuride is combined with Acetaminophen. The serum concentration of Acetaminophen can be increased when it is combined with Fosaprepitant. The risk or severity of adverse effects can be increased when Pergolide is combined with Acetaminophen. The serum concentration of Rilpivirine can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be increased when combined with Rifapentine. The metabolism of Acetaminophen can be decreased when combined with Sulfisoxazole. The metabolism of Acetaminophen can be decreased when combined with Manidipine. The metabolism of Acetaminophen can be decreased when combined with Quinine. The serum concentration of Nintedanib can be increased when it is combined with Acetaminophen. The risk or severity of adverse effects can be increased when Isoniazid is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Isradipine. The serum concentration of Ledipasvir can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Cimetidine. The risk or severity of adverse effects can be increased when Methysergide is combined with Acetaminophen. The serum concentration of Rosuvastatin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Tranylcypromine. The metabolism of Acetaminophen can be decreased when combined with Dosulepin. The metabolism of Acetaminophen can be decreased when combined with Citalopram. The metabolism of Acetaminophen can be decreased when combined with Nelfinavir. The metabolism of Acetaminophen can be increased when combined with Thiopental. The serum concentration of Bosutinib can be increased when it is combined with Acetaminophen. The serum concentration of Simvastatin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Felodipine. 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 Clomipramine. The metabolism of Acetaminophen can be decreased when combined with Ritonavir. The metabolism of Acetaminophen can be decreased when combined with Clobazam. The serum concentration of Ibrutinib can be increased when it is combined with Acetaminophen. The serum concentration of Brentuximab vedotin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Mexiletine. The serum concentration of Naloxegol can be increased when it is combined with Acetaminophen.