The metabolism of Acetaminophen can be decreased when combined with Itraconazole. The metabolism of Acetaminophen can be decreased when combined with Indinavir. The metabolism of Acetaminophen can be decreased when combined with Sulfisoxazole. The metabolism of Acetaminophen can be decreased when combined with Pyrimethamine. The metabolism of Acetaminophen can be decreased when combined with Theophylline. The metabolism of Acetaminophen can be decreased when combined with Methadone. The metabolism of Acetaminophen can be decreased when combined with Fluorouracil. The metabolism of Acetaminophen can be decreased when combined with Amiodarone. The metabolism of Acetaminophen can be decreased when combined with Telithromycin. The metabolism of Acetaminophen can be decreased when combined with Diphenhydramine. 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 Methylergometrine 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 Atomoxetine. The metabolism of Acetaminophen can be decreased when combined with Ticlopidine. The metabolism of Acetaminophen can be decreased when combined with Artemether. The serum concentration of Acetaminophen can be increased when it is combined with Simeprevir. The metabolism of Acetaminophen can be decreased when combined with Sulfamethoxazole. The metabolism of Acetaminophen can be decreased when combined with Telaprevir. The metabolism of Acetaminophen can be decreased when combined with Rosiglitazone. The serum concentration of Naloxegol can be increased when it is combined with Acetaminophen. The serum concentration of Acetaminophen can be increased when it is combined with Panobinostat. The metabolism of Acetaminophen can be decreased when combined with Terbinafine. The serum concentration of Simvastatin can be increased when it is combined with Acetaminophen. The serum concentration of Phenylephrine can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Zafirlukast. 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 Rabeprazole. The serum concentration of Acetaminophen can be increased when it is combined with Ceritinib. Acetaminophen may increase the hepatotoxic activities of Imatinib. The serum concentration of Acetaminophen can be increased when it is combined with Mifepristone. The metabolism of Acetaminophen can be decreased when combined with Lapatinib. The metabolism of Acetaminophen can be decreased when combined with Caffeine. The metabolism of Acetaminophen can be decreased when combined with Lobeglitazone. The metabolism of Acetaminophen can be increased when combined with Amobarbital. The metabolism of Acetaminophen can be decreased when combined with Manidipine. The metabolism of Acetaminophen can be decreased when combined with Crizotinib. The serum concentration of Acetaminophen can be increased when it is combined with Netupitant. The metabolism of Acetaminophen can be decreased when combined with Clobazam. The metabolism of Acetaminophen can be decreased when combined with Cimetidine. The serum concentration of Nintedanib can be increased when it is combined with Acetaminophen. The serum concentration of Aripiprazole can be decreased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Clotrimazole. The serum concentration of Mevastatin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Dosulepin. The metabolism of Acetaminophen can be decreased when combined with Boceprevir. The metabolism of Acetaminophen can be decreased when combined with Nelfinavir. The metabolism of Acetaminophen can be decreased when combined with Sertraline. The metabolism of Acetaminophen can be decreased when combined with Tenofovir disoproxil. Acetaminophen may increase the hepatotoxic activities of Mipomersen. The metabolism of Acetaminophen can be increased when combined with Thiopental. The metabolism of Acetaminophen can be decreased when combined with Omeprazole. 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 Delavirdine. The metabolism of Acetaminophen can be decreased when combined with Isavuconazonium. The metabolism of Acetaminophen can be decreased when combined with Azithromycin. The metabolism of Acetaminophen can be decreased when combined with Cinacalcet. The metabolism of Acetaminophen can be decreased when combined with Duloxetine. The metabolism of Acetaminophen can be decreased when combined with Haloperidol. The metabolism of Acetaminophen can be decreased when combined with Chloroquine. Acetaminophen may increase the anticoagulant activities of Phenindione. The serum concentration of Pravastatin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Atazanavir. 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 Eliglustat. Cholestyramine can cause a decrease in the absorption of Acetaminophen resulting in a reduced serum concentration and potentially a decrease in efficacy. The risk or severity of adverse effects can be increased when Lisuride is combined with Acetaminophen. The risk or severity of adverse effects can be increased when Bromocriptine is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Rucaparib. The metabolism of Acetaminophen can be decreased when combined with Sildenafil. The metabolism of Acetaminophen can be decreased when combined with Leflunomide. The metabolism of Acetaminophen can be increased when combined with Methylphenobarbital. The serum concentration of Bosutinib can be increased when it is combined with Acetaminophen. The serum concentration of Ranolazine can be increased when it is combined with Acetaminophen. 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 Tamoxifen. The metabolism of Acetaminophen can be decreased when combined with Fluvoxamine. The metabolism of Acetaminophen can be decreased when combined with Paroxetine. The serum concentration of the active metabolites of Dabigatran etexilate can be increased when Dabigatran etexilate is used in combination with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Floxuridine. The serum concentration of Acetaminophen can be increased when it is combined with Osimertinib. The metabolism of Acetaminophen can be decreased when combined with Quinidine. The serum concentration of Acetaminophen can be decreased when it is combined with Cyproterone acetate. The serum concentration of Acetaminophen can be increased when it is combined with Metyrapone. The serum concentration of Acetaminophen can be increased when it is combined with Lumacaftor. The serum concentration of Acetaminophen can be increased when it is combined with Aprepitant. The serum concentration of Acetaminophen can be decreased when it is combined with Mitotane. The serum concentration of Ubidecarenone can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Lovastatin. The serum concentration of Vincristine can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Cocaine. The metabolism of Acetaminophen can be increased when combined with Barbexaclone. The serum concentration of Acetaminophen can be increased when it is combined with Luliconazole. The metabolism of Acetaminophen can be decreased when combined with Celecoxib. The serum concentration of Silodosin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Efavirenz. The metabolism of Acetaminophen can be increased when combined with Rifampicin. The metabolism of Acetaminophen can be decreased when combined with Dronedarone. The metabolism of Acetaminophen can be decreased when combined with Lumefantrine. The metabolism of Acetaminophen can be decreased when combined with Midostaurin. The serum concentration of Acetaminophen can be decreased when it is combined with Teriflunomide. Acetaminophen may increase the anticoagulant activities of Dicoumarol. The metabolism of Acetaminophen can be decreased when combined with Crisaborole. The metabolism of Acetaminophen can be decreased when combined with Chlorpromazine. The metabolism of Acetaminophen can be decreased when combined with Imipramine. The metabolism of Acetaminophen can be decreased when combined with Gemfibrozil. The serum concentration of Acetaminophen can be decreased when it is combined with Bosentan. 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 Ergonovine is combined with Acetaminophen. The serum concentration of Rifaximin can be increased when it is combined with Acetaminophen. Acetaminophen may increase the anticoagulant activities of Fluindione. The serum concentration of Colchicine can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Verapamil. The metabolism of Acetaminophen can be increased when combined with Thiamylal. The metabolism of Acetaminophen can be decreased when combined with Bupropion. The serum concentration of Everolimus can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Metoprolol. The metabolism of Acetaminophen can be decreased when combined with Clemastine. The metabolism of Acetaminophen can be decreased when combined with Nicotine. The metabolism of Acetaminophen can be increased when combined with Phenobarbital. The serum concentration of Topotecan can be increased when it is combined with Acetaminophen. The serum concentration of Busulfan can be increased when it is combined with Acetaminophen. The serum concentration of Afatinib can be increased when it is combined with Acetaminophen. The risk or severity of adverse effects can be increased when Metergoline is combined with Acetaminophen. The serum concentration of Acetaminophen can be increased when it is combined with Fusidic Acid. The risk or severity of adverse effects can be increased when Isoniazid is combined with Acetaminophen. The serum concentration of Acetaminophen can be increased when it is combined with Stiripentol. The metabolism of Acetaminophen can be decreased when combined with Saquinavir. The serum concentration of Acetaminophen can be increased when it is combined with Darunavir. The serum concentration of Acetaminophen can be decreased when it is combined with Tocilizumab.