The metabolism of Gliclazide can be decreased when combined with Omeprazole. The metabolism of Flutamide can be decreased when combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Diltiazem. The serum concentration of Omeprazole can be decreased when it is combined with Phenytoin. The serum concentration of Thioridazine can be increased when it is combined with Omeprazole. The metabolism of Sulfinpyrazone can be decreased when combined with Omeprazole. The serum concentration of Omeprazole can be increased when it is combined with Osimertinib. The metabolism of Macitentan can be decreased when combined with Omeprazole. The therapeutic efficacy of Zoledronic acid can be decreased when used in combination with Omeprazole. The metabolism of Dorzolamide can be decreased when combined with Omeprazole. The serum concentration of Tacrolimus can be increased when it is combined with Omeprazole. The metabolism of Alprazolam can be decreased when combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Ticagrelor. Omeprazole can cause a decrease in the absorption of Atazanavir resulting in a reduced serum concentration and potentially a decrease in efficacy. The metabolism of Cabozantinib can be decreased when combined with Omeprazole. The metabolism of Brivaracetam can be decreased when combined with Omeprazole. The metabolism of Clomipramine can be decreased when combined with Omeprazole. The metabolism of Suprofen can be decreased when combined with Omeprazole. The serum concentration of Metoprolol can be increased when it is combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Telaprevir. The metabolism of Chlorpropamide can be decreased when combined with Omeprazole. The metabolism of Ximelagatran can be decreased when combined with Omeprazole. The serum concentration of Mevastatin can be increased when it is combined with Omeprazole. The metabolism of Tretinoin can be decreased when combined with Omeprazole. The metabolism of Paclitaxel can be decreased when combined with Omeprazole. The serum concentration of Omeprazole can be decreased when it is combined with Siltuximab. The serum concentration of Simvastatin can be increased when it is combined with Omeprazole. The metabolism of Fluoxetine can be decreased when combined with Omeprazole. The serum concentration of the active metabolites of Fesoterodine can be increased when Fesoterodine is used in combination with Omeprazole. The metabolism of Glimepiride can be decreased when combined with Omeprazole. The metabolism of Zopiclone can be decreased when combined with Omeprazole. The metabolism of Promazine can be decreased when combined with Omeprazole. The serum concentration of Omeprazole can be increased when it is combined with Abiraterone. The metabolism of Trabectedin can be decreased when combined with Omeprazole. The metabolism of Diazepam can be decreased when combined with Omeprazole. The metabolism of Aceclofenac can be decreased when combined with Omeprazole. The serum concentration of Indinavir can be decreased when it is combined with Omeprazole. The serum concentration of Omeprazole can be decreased when it is combined with Tipranavir. The metabolism of Omeprazole can be decreased when combined with Fluvoxamine. The metabolism of Quinine can be decreased when combined with Omeprazole. The serum concentration of Saquinavir can be increased when it is combined with Omeprazole. The metabolism of Troglitazone can be decreased when combined with Omeprazole. The serum concentration of Saxagliptin can be decreased when it is combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Amiodarone. The serum concentration of Naloxegol can be increased when it is combined with Omeprazole. The serum concentration of Ibrutinib can be increased when it is combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Olaparib. The metabolism of Omeprazole can be decreased when combined with Azithromycin. The serum concentration of Tizanidine can be increased when it is combined with Omeprazole. The risk or severity of adverse effects can be increased when Omeprazole is combined with Atorvastatin. The serum concentration of Omeprazole can be increased when it is combined with Vemurafenib. The metabolism of Omeprazole can be decreased when combined with Irbesartan. The metabolism of Omeprazole can be decreased when combined with Boceprevir. The metabolism of Amitriptyline can be decreased when combined with Omeprazole. The metabolism of Ketobemidone can be decreased when combined with Omeprazole. The metabolism of Arformoterol can be decreased when combined with Omeprazole. The metabolism of Teniposide can be decreased when combined with Omeprazole. The serum concentration of Topotecan can be increased when it is combined with Omeprazole. The metabolism of Diclofenac can be decreased when combined with Omeprazole. The metabolism of Piroxicam can be decreased when combined with Omeprazole. The metabolism of Bromazepam can be decreased when combined with Omeprazole. The metabolism of Antipyrine can be decreased when combined with Omeprazole. The serum concentration of Omeprazole can be decreased when it is combined with Mitotane. The serum concentration of Mycophenolic acid can be decreased when it is combined with Omeprazole. The metabolism of Methylphenobarbital can be decreased when combined with Omeprazole. The metabolism of Dextromethorphan can be decreased when combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Isradipine. Omeprazole can cause a decrease in the absorption of Ferric pyrophosphate resulting in a reduced serum concentration and potentially a decrease in efficacy. The serum concentration of Conivaptan can be increased when it is combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Sulfamethoxazole. The metabolism of Sertraline can be decreased when combined with Omeprazole. The metabolism of Pentamidine can be decreased when combined with Omeprazole. The metabolism of Clobazam can be decreased when combined with Omeprazole. The metabolism of Nilutamide can be decreased when combined with Omeprazole. The metabolism of Hexobarbital can be decreased when combined with Omeprazole. The metabolism of Seratrodast can be decreased when combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Midostaurin. Omeprazole can cause an increase in the absorption of Methylphenidate resulting in an increased serum concentration and potentially a worsening of adverse effects. The serum concentration of Phenindione can be increased when it is combined with Omeprazole. The metabolism of Dapagliflozin can be decreased when combined with Omeprazole. The metabolism of Oxiconazole can be decreased when combined with Omeprazole. The serum concentration of Clozapine can be decreased when it is combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Sorafenib. The serum concentration of Pazopanib can be increased when it is combined with Omeprazole. The metabolism of Buprenorphine can be decreased when combined with Omeprazole. The metabolism of Ibuprofen can be decreased when combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Clotrimazole. Omeprazole can cause a decrease in the absorption of Ferric Citrate resulting in a reduced serum concentration and potentially a decrease in efficacy. The metabolism of Omeprazole can be decreased when combined with Lovastatin. The metabolism of Podofilox can be decreased when combined with Omeprazole. The metabolism of Almotriptan can be decreased when combined with Omeprazole. The risk or severity of adverse effects can be increased when Pergolide is combined with Omeprazole. The metabolism of Glucosamine can be decreased when combined with Omeprazole. The serum concentration of Omeprazole can be increased when it is combined with Lumacaftor. The serum concentration of Methotrexate can be increased when it is combined with Omeprazole. The metabolism of Guanfacine can be decreased when combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Idelalisib. Omeprazole can cause an increase in the absorption of Dextroamphetamine resulting in an increased serum concentration and potentially a worsening of adverse effects. The therapeutic efficacy of Etidronic acid can be decreased when used in combination with Omeprazole. The metabolism of Alosetron can be decreased when combined with Omeprazole. The risk or severity of adverse effects can be increased when Nicergoline is combined with Omeprazole. The serum concentration of Omeprazole can be increased when it is combined with Fluconazole. The metabolism of Quazepam can be decreased when combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Gemfibrozil. The metabolism of Omeprazole can be decreased when combined with Theophylline. The metabolism of Licofelone can be decreased when combined with Omeprazole. The metabolism of Methadone can be decreased when combined with Omeprazole. The serum concentration of Prucalopride can be increased when it is combined with Omeprazole. The metabolism of Romidepsin can be decreased when combined with Omeprazole. The metabolism of Eletriptan can be decreased when combined with Omeprazole. The serum concentration of Omeprazole can be increased when it is combined with Simeprevir. The metabolism of Mestranol can be decreased when combined with Omeprazole. The metabolism of Donepezil can be decreased when combined with Omeprazole. The metabolism of Meloxicam can be decreased when combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Ticlopidine. The metabolism of Vismodegib can be decreased when combined with Omeprazole. The serum concentration of Omeprazole can be decreased when it is combined with Deferasirox. The risk or severity of adverse effects can be increased when Methylergometrine is combined with Omeprazole. The serum concentration of Aripiprazole can be decreased when it is combined with Omeprazole. The metabolism of Omeprazole can be decreased when combined with Floxuridine. The metabolism of Tolterodine can be decreased when combined with Omeprazole. The metabolism of Trimethoprim can be decreased when combined with Omeprazole. The serum concentration of Ethyl biscoumacetate can be increased when it is combined with Omeprazole. The metabolism of Brompheniramine can be decreased when combined with Omeprazole. The serum concentration of Omeprazole can be increased when it is combined with Ivacaftor. The metabolism of Propranolol can be decreased when combined with Omeprazole. The serum concentration of Omeprazole can be increased when it is combined with Voriconazole. The metabolism of Omeprazole can be decreased when combined with Zucapsaicin. The metabolism of Apixaban can be decreased when combined with Omeprazole. The therapeutic efficacy of Tiludronic acid can be decreased when used in combination with Omeprazole.