The serum concentration of Acetaminophen can be decreased when it is combined with Tocilizumab. The metabolism of Acetaminophen can be decreased when combined with Cimetidine. The risk or severity of adverse effects can be increased when Ergotamine is combined with Acetaminophen. Acetaminophen may increase the anticoagulant activities of Fluindione. The metabolism of Acetaminophen can be decreased when combined with Atazanavir. The metabolism of Acetaminophen can be decreased when combined with Desipramine. The metabolism of Acetaminophen can be decreased when combined with Pioglitazone. The risk or severity of adverse effects can be increased when Lysergic Acid Diethylamide is combined with Acetaminophen. The serum concentration of Afatinib can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Rolapitant. The metabolism of Acetaminophen can be decreased when combined with Omeprazole. The metabolism of Acetaminophen can be decreased when combined with Indinavir. The metabolism of Acetaminophen can be decreased when combined with Cinacalcet. The metabolism of Acetaminophen can be decreased when combined with Sulfisoxazole. 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 Bosentan. The metabolism of Acetaminophen can be decreased when combined with Clemastine. Acetaminophen may increase the hepatotoxic activities of Imatinib. The metabolism of Acetaminophen can be increased when combined with Secobarbital. The serum concentration of Acetaminophen can be increased when it is combined with Fusidic Acid. The metabolism of Acetaminophen can be increased when combined with Rifampicin. The metabolism of Acetaminophen can be increased when combined with Rifapentine. The metabolism of Acetaminophen can be decreased when combined with Ritonavir. The risk or severity of adverse effects can be increased when Acetaminophen is combined with Atorvastatin. The risk or severity of adverse effects can be increased when Acetaminophen is combined with Sodium Nitrite. The serum concentration of Acetaminophen can be increased when it is combined with Lumacaftor. The metabolism of Acetaminophen can be decreased when combined with Dosulepin. The metabolism of Acetaminophen can be increased when combined with Amobarbital. The metabolism of Acetaminophen can be decreased when combined with Etravirine. The metabolism of Acetaminophen can be decreased when combined with Ticlopidine. The metabolism of Acetaminophen can be decreased when combined with Posaconazole. The metabolism of Acetaminophen can be decreased when combined with Telaprevir. 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 Rabeprazole. The metabolism of Acetaminophen can be decreased when combined with Trimethoprim. The serum concentration of Conivaptan can be increased when it is combined with Acetaminophen. The serum concentration of Vincristine can be increased when it is combined with Acetaminophen. Ethanol may increase the hepatotoxic activities of Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Dihydroergotamine. The metabolism of Acetaminophen can be decreased when combined with Rosiglitazone. 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 Simeprevir. The serum concentration of Doxorubicin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Saquinavir. Acetaminophen may increase the anticoagulant activities of Phenindione. The metabolism of Acetaminophen can be decreased when combined with Valproic Acid. The metabolism of Acetaminophen can be increased when combined with Hexobarbital. The metabolism of Acetaminophen can be decreased when combined with Irbesartan. Acetaminophen may increase the anticoagulant activities of Acenocoumarol. The metabolism of Acetaminophen can be decreased when combined with Bupropion. The serum concentration of Acetaminophen can be decreased when it is combined with Fosphenytoin. The metabolism of Acetaminophen can be decreased when combined with Theophylline. The metabolism of Acetaminophen can be decreased when combined with Clomipramine. The serum concentration of Silodosin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Lopinavir. The risk or severity of adverse effects can be increased when Ergonovine is combined with Acetaminophen. The serum concentration of Mevastatin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be increased when combined with Barbexaclone. The metabolism of Acetaminophen can be decreased when combined with Celecoxib. The metabolism of Acetaminophen can be increased when combined with Thiamylal. The metabolism of Acetaminophen can be decreased when combined with Dronedarone. The serum concentration of Acetaminophen can be increased when it is combined with Mifepristone. The serum concentration of Acetaminophen can be increased when it is combined with Luliconazole. The metabolism of Acetaminophen can be decreased when combined with Quinine. The metabolism of Acetaminophen can be decreased when combined with Clobazam. 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 Tranylcypromine. The metabolism of Acetaminophen can be decreased when combined with Diltiazem. The serum concentration of Acetaminophen can be decreased when it is combined with Peginterferon alfa-2b. The metabolism of Acetaminophen can be decreased when combined with Duloxetine. 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 Itraconazole. The serum concentration of Acetaminophen can be decreased when it is combined with Deferasirox. The serum concentration of Acetaminophen can be decreased when it is combined with Dabrafenib. The metabolism of Acetaminophen can be decreased when combined with Floxuridine. The risk or severity of adverse effects can be increased when Methysergide is combined with Acetaminophen. The metabolism of Acetaminophen can be increased when combined with Thiopental. The metabolism of Acetaminophen can be decreased when combined with Betaxolol. The metabolism of Acetaminophen can be decreased when combined with Quinidine. The metabolism of Acetaminophen can be increased when combined with Rifabutin. The serum concentration of Acetaminophen can be increased when it is combined with Fosaprepitant. The serum concentration of Acetaminophen can be decreased when it is combined with Mitotane. The metabolism of Acetaminophen can be decreased when combined with Clarithromycin. The metabolism of Acetaminophen can be decreased when combined with Bortezomib. The serum concentration of Acetaminophen can be decreased when it is combined with Teriflunomide. The metabolism of Acetaminophen can be decreased when combined with Lidocaine. The metabolism of Acetaminophen can be decreased when combined with Venlafaxine. The metabolism of Acetaminophen can be decreased when combined with Clozapine. The metabolism of Acetaminophen can be decreased when combined with Paroxetine. The metabolism of Acetaminophen can be decreased when combined with Lumefantrine. The serum concentration of Nintedanib can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Crizotinib. The metabolism of Acetaminophen can be decreased when combined with Cocaine. The serum concentration of Acetaminophen can be increased when it is combined with Stiripentol. The metabolism of Acetaminophen can be decreased when combined with Mirabegron. The metabolism of Acetaminophen can be decreased when combined with Caffeine. The metabolism of Acetaminophen can be decreased when combined with Methotrimeprazine. The metabolism of Acetaminophen can be decreased when combined with Mexiletine. The metabolism of Acetaminophen can be decreased when combined with Boceprevir. The metabolism of Acetaminophen can be decreased when combined with Ziprasidone. The metabolism of Acetaminophen can be decreased when combined with Nicardipine. The metabolism of Acetaminophen can be decreased when combined with Haloperidol. The serum concentration of Topotecan can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Manidipine. The serum concentration of Acetaminophen can be decreased when it is combined with Siltuximab. The metabolism of Acetaminophen can be decreased when combined with Chlorpromazine. The serum concentration of Cerivastatin can be increased when it is combined with Acetaminophen. The serum concentration of Ledipasvir can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Isavuconazonium. The serum concentration of Rifaximin can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Pyrimethamine. The risk or severity of adverse effects can be increased when Pergolide is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Nicotine. The serum concentration of Acetaminophen can be increased when it is combined with Probenecid. The serum concentration of Ubidecarenone can be increased when it is combined with Acetaminophen. The serum concentration of Acetaminophen can be increased when it is combined with Vemurafenib. The serum concentration of Ibrutinib can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Olaparib. The metabolism of Acetaminophen can be decreased when combined with Tenofovir disoproxil. The serum concentration of Acetaminophen can be increased when it is combined with Panobinostat. The serum concentration of Acetaminophen can be decreased when it is combined with Enzalutamide. The serum concentration of Busulfan can be increased when it is combined with Acetaminophen. The metabolism of Acetaminophen can be decreased when combined with Amiodarone. The metabolism of Acetaminophen can be decreased when combined with Losartan. The metabolism of Acetaminophen can be decreased when combined with Atomoxetine. The metabolism of Acetaminophen can be decreased when combined with Tipranavir. The serum concentration of Pitavastatin 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 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 Sildenafil.