Showing BioInteractions for Diphenhydramine (DB01075)

BioInteractor utilizes data on drug-target, -enzyme and -transporter associations to provide insight on drug-drug interactions. It allows you to identify, for instance, which drugs act similarly on the same target. Such drugs may have additive pharmacodynamic effects if given concomitantly. Conversely, two drugs may antagonize the beneficial effects of each other by having opposite actions on a specific drug target. BioInteractor uses ranked drug-enzyme association information to predict enzyme-mediated drug interactions that may be clinically relevant.

	Interacting Group	Interacting Drugs
	Diphenhydramine is a Histamine H1 receptor antagonist
1	Histamine H1 receptor antagonists	Aceprometazine, Acrivastine, Alcaftadine, Alimemazine, Amitriptyline, Amoxapine, Antazoline, Aripiprazole, Aripiprazole lauroxil, Asenapine, Astemizole, Azatadine, Azelastine, Benzatropine, Benzquinamide, Bepotastine, Bilastine, Bromodiphenhydramine, Brompheniramine, Buclizine, Butriptyline, Carbinoxamine, Cariprazine, Cetirizine, Chlorcyclizine, Chloropyramine, Chlorpheniramine, Chlorpromazine, Chlorprothixene, Cinnarizine, Clemastine, Clofedanol, Clozapine, Cyclizine, Cyproheptadine, Desipramine, Desloratadine, Dexbrompheniramine, Dexchlorpheniramine maleate, Dimenhydrinate, Dimetindene, Diphenylpyraline, Dosulepin, Doxepin, Doxylamine, Emedastine, Epinastine, Fexofenadine, Flunarizine, Iloperidone, Imipramine, Isothipendyl, Ketotifen, Lamotrigine, Levocabastine, Levocetirizine, Loratadine, Lorpiprazole, Maprotiline, Meclizine, Mepyramine, Mequitazine, Methdilazine, Methotrimeprazine, Mianserin, Mirtazapine, Nortriptyline, Olanzapine, Olopatadine, Orphenadrine, Paliperidone, Phenindamine, Pizotifen, Prochlorperazine, Promazine, Promethazine, Propiomazine, Quetiapine, Risperidone, Rupatadine, Terfenadine, Tesmilifene, Thonzylamine, Trazodone, Trimipramine, Tripelennamine, Triprolidine, Ziprasidone, Zuclopenthixol
2	Histamine H1 receptor inverse agonists	Esmirtazapine, Hydroxyzine, Perospirone, Pheniramine
3	Histamine H1 receptor agonists	Betahistine, Histamine, Tolazoline
4	Histamine H1 receptor inhibitors	Escitalopram, Levocetirizine, Paroxetine
5	Histamine H1 receptor binders	Citalopram, Loxapine

	Interacting Group	Interacting Drugs
	Diphenhydramine is a Muscarinic acetylcholine receptor M2 antagonist
1	Muscarinic acetylcholine receptor M2 antagonists	Aclidinium, Anisotropine methylbromide, Atropine, Benzquinamide, Brompheniramine, Butylscopolamine, Chlorprothixene, Clozapine, Cocaine, Cryptenamine, Cyproheptadine, Darifenacin, Desipramine, Dicyclomine, Dimetindene, Diphenidol, Disopyramide, Dosulepin, Doxacurium, Doxepin, Fesoterodine, Flavoxate, Gallamine triethiodide, Hexocyclium, Homatropine, Homatropine methylbromide, Hyoscyamine, Imidafenacin, Imipramine, Ipratropium, Maprotiline, Methotrimeprazine, Methscopolamine bromide, Metocurine, Mivacurium, Nicardipine, Olanzapine, Oxybutynin, Oxyphencyclimine, Pancuronium, Pipecuronium, Pizotifen, Procyclidine, Profenamine, Promethazine, Propiverine, Rapacuronium, Rociverine, Rocuronium, Scopolamine, Solifenacin, Thonzylamine, Tiotropium, Tolterodine, Tridihexethyl, Triflupromazine, Trihexyphenidyl, Trimebutine, Tropicamide, Umeclidinium, Ziprasidone
2	Muscarinic acetylcholine receptor M2 agonists	Bethanechol, Carbamoylcholine, Methacholine, Pilocarpine, Succinylcholine
3	Muscarinic acetylcholine receptor M2 partial agonists	Mivacurium
4	Muscarinic acetylcholine receptor M2 ligands	Aripiprazole, Quetiapine
5	Muscarinic acetylcholine receptor M2 binders	Glycopyrronium, Loxapine, Terfenadine

	Interacting Group	Interacting Drugs
	Diphenhydramine is a Cytochrome P450 2D6 substrate
1	Cytochrome P450 2D6 substrates	4-Methoxyamphetamine, 5-methoxy-N,N-dimethyltryptamine, Acebutolol, Acetaminophen, Almotriptan, Alogliptin, Alprenolol, Aminophenazone, Amitriptyline, Amoxapine, Amphetamine, Amprenavir, Anisodamine, Antipyrine, Aprindine, Arformoterol, Aripiprazole, Aripiprazole lauroxil, Arotinolol, Asenapine, Astemizole, Asunaprevir, Atenolol, Atomoxetine, Azelastine, Azimilide, Befunolol, Benzyl alcohol, Bepridil, Betaxolol, Bevantolol, Bicifadine, Bopindolol, Bortezomib, Brexpiprazole, Bucindolol, Bufuralol, Bupivacaine, Bupranolol, Buprenorphine, Buspirone, Butyrfentanyl, Caffeine, Cannabidiol, Cariprazine, Carteolol, Carvedilol, Celecoxib, Celiprolol, Cevimeline, Chloroquine, Chlorpheniramine, Chlorpromazine, Chlorzoxazone, Ciclesonide, Cilostazol, Cinnarizine, Citalopram, Clevidipine, Clomipramine, Clonidine, Cloranolol, Clozapine, Codeine, Cyclobenzaprine, Dacomitinib, Dapagliflozin, Dapoxetine, Darifenacin, Dasabuvir, Debrisoquine, Delavirdine, Desipramine, Deutetrabenazine, Dexchlorpheniramine, Dexchlorpheniramine maleate, Dexfenfluramine, Dextroamphetamine, Dextromethorphan, Dextropropoxyphene, Dihydrocodeine, Diltiazem, Dolasetron, Domperidone, Donepezil, Dosulepin, Doxazosin, Doxepin, Dronedarone, Duloxetine, Elagolix, Eletriptan, Eliglustat, Enasidenib, Encainide, Enclomiphene, Encorafenib, Epanolol, Epinastine, Erlotinib, Esatenolol, Escitalopram, Esmirtazapine, Esmolol, Ethylmorphine, Fenfluramine, Fesoterodine, Flecainide, Flunarizine, Fluoxetine, Fluvastatin, Fluvoxamine, Formoterol, Fusidic acid, Galantamine, Gefitinib, Haloperidol, Hydrocodone, Hydroxychloroquine, Ibrutinib, Idarubicin, Iloperidone, Imatinib, Imipramine, Indenolol, Ipecac, Istradefylline, Ixazomib, Labetalol, Landiolol, Letermovir, Levobetaxolol, Levobunolol, Levomilnacipran, Lidocaine, Lisdexamfetamine, Lofexidine, Loperamide, Lopinavir, Loratadine, Lorcaserin, Lorpiprazole, Lysergic acid diethylamide, Maprotiline, Meclizine, Meperidine, Mephenytoin, Mepindolol, Mequitazine, Mesoridazine, Metamfetamine, Methadone, Methotrimeprazine, Methoxyflurane, Methylene blue, Metipranolol, Metoclopramide, Metoprolol, Mexiletine, Mianserin, Midodrine, Midomafetamine, Minaprine, Mirabegron, Mirtazapine, Moclobemide, Nabiximols, Nateglinide, Nebivolol, Nefazodone, Netupitant, Nevirapine, Nicergoline, Nicotine, Nortriptyline, Olanzapine, Oliceridine, Ondansetron, Opium, Osilodrostat, Oxamniquine, Oxprenolol, Oxycodone, Oxymorphone, Paliperidone, Palonosetron, Paroxetine, Penbutolol, Pentamidine, Perhexiline, Perospirone, Perphenazine, Phenacetin, Phenformin, Phenytoin, Pindolol, Piperazine, Pipotiazine, Pirfenidone, Pitolisant, Ponatinib, Practolol, Pralsetinib, Procainamide, Prochlorperazine, Progesterone, Promazine, Promethazine, Propacetamol, Propafenone, Propranolol, Quetiapine, Quinine, Ranolazine, Remdesivir, Remoxipride, Repinotan, Revefenacin, Ripretinib, Risperidone, Ritonavir, Rotigotine, Rucaparib, Rupatadine, Selegiline, Sertindole, Sertraline, Sildenafil, Simvastatin, Solifenacin, Sotalol, Sparteine, Tafenoquine, Talinolol, Tamoxifen, Tamsulosin, Tapentadol, Tegaserod, Terfenadine, Tertatolol, Tesmilifene, Tetrabenazine, Theophylline, Thioridazine, Ticlopidine, Timolol, Tiotropium, Tipranavir, Tolterodine, Trabectedin, Tramadol, Trazodone, Triclabendazole, Trimipramine, Umeclidinium, Umifenovir, Upadacitinib, Valbenazine, Venlafaxine, Vernakalant, Vilazodone, Vortioxetine, Yohimbine, Zolpidem, Zuclopenthixol
2	Cytochrome P450 2D6 inhibitors	1-(2-Phenylethyl)-4-phenyl-4-acetoxypiperidine, Abemaciclib, Abiraterone, Acebutolol, Amiodarone, Amlodipine, Amodiaquine, Amoxapine, Artenimol, Asenapine, Asunaprevir, Atorvastatin, Azelastine, Bepridil, Berotralstat, Bicalutamide, Biperiden, Black cohosh, Buprenorphine, Bupropion, Cannabidiol, Celecoxib, Cerivastatin, Chloroquine, Chlorpheniramine, Chlorpromazine, Cimetidine, Cinacalcet, Cisapride, Citalopram, Clascoterone, Clemastine, Clinafloxacin, Clobazam, Clofazimine, Clomipramine, Clotrimazole, Clozapine, Cobicistat, Cocaine, Curcumin, Curcumin sulfate, Cyclosporine, Dacomitinib, Darifenacin, Darunavir, Delavirdine, Deramciclane, Desipramine, Desvenlafaxine, Dexchlorpheniramine, Dexchlorpheniramine maleate, Dexfenfluramine, Dexmedetomidine, Dextropropoxyphene, Diacerein, Dimethyl sulfoxide, Dosulepin, Doxepin, Doxorubicin, Dronedarone, Duloxetine, Efavirenz, Elexacaftor, Eliglustat, Enasidenib, Entacapone, Epinastine, Escitalopram, Ethambutol, Etoricoxib, Everolimus, Fedratinib, Felodipine, Fenfluramine, Flecainide, Fluoxetine, Fluphenazine, Fluvoxamine, Fusidic acid, Gefitinib, Glycerol phenylbutyrate, Halofantrine, Haloperidol, Hydroxychloroquine, Hydroxyurea, Hydroxyzine, Imatinib, Imipramine, Indinavir, Indisulam, Iproniazid, Isavuconazole, Isoniazid, Ketoconazole, Labetalol, Lansoprazole, Lasmiditan, Lenvatinib, Lercanidipine, Lidocaine, Lisdexamfetamine, Lomustine, Loratadine, Lorcaserin, Lumefantrine, Manidipine, Medical Cannabis, Melperone, Menadione, Mepyramine, Methadone, Methimazole, Methotrimeprazine, Methylene blue, Metoclopramide, Metoprolol, Mibefradil, Miconazole, Midostaurin, Mifepristone, Mirabegron, Mizolastine, Moclobemide, Nabiximols, Naloxegol, Nefazodone, Nelfinavir, Nevirapine, Niacin, Nicardipine, Nicotinamide, Nifedipine, Nilotinib, Nortriptyline, Olanzapine, Omeprazole, Oritavancin, Orphenadrine, Osilodrostat, Ospemifene, Oxamniquine, Oxprenolol, Oxybutynin, Oxymetholone, Panobinostat, Paroxetine, Pazopanib, Peginterferon alfa-2b, Perhexiline, Perphenazine, Phenelzine, Phenylbutyric acid, Pimozide, Pindolol, Pipotiazine, Pitolisant, Primaquine, Proguanil, Promethazine, Propafenone, Propranolol, Quinidine, Quinine, Rabeprazole, Ranitidine, Ranolazine, Reboxetine, Rhein, Rilpivirine, Risperidone, Ritanserin, Ritonavir, Rolapitant, Rosiglitazone, Rotigotine, Rucaparib, Safinamide, Saquinavir, Selegiline, Sertraline, Sorafenib, Sparteine, St. John's Wort, Stiripentol, Sulconazole, Sulfanilamide, Sulfaphenazole, Tamoxifen, Tegaserod, Temsirolimus, Terbinafine, Terfenadine, Thioridazine, Thiothixene, Ticlopidine, Tipranavir, Tirbanibulin, Tranylcypromine, Trazodone, Triclabendazole, Tripelennamine, Trospium, Ubrogepant, Vemurafenib, Venlafaxine, Verapamil, Vernakalant, Vinblastine, Vinorelbine, Zafirlukast
3	Cytochrome P450 2D6 inducers	Modafinil, Oritavancin

	Interacting Group	Interacting Drugs
	Diphenhydramine is a Cytochrome P450 2D6 inhibitor
1	Cytochrome P450 2D6 substrates	4-Methoxyamphetamine, 5-methoxy-N,N-dimethyltryptamine, Acebutolol, Acetaminophen, Almotriptan, Alogliptin, Alprenolol, Aminophenazone, Amitriptyline, Amoxapine, Amphetamine, Amprenavir, Anisodamine, Antipyrine, Aprindine, Arformoterol, Aripiprazole, Aripiprazole lauroxil, Arotinolol, Asenapine, Astemizole, Asunaprevir, Atenolol, Atomoxetine, Azelastine, Azimilide, Befunolol, Benzyl alcohol, Bepridil, Betaxolol, Bevantolol, Bicifadine, Bopindolol, Bortezomib, Brexpiprazole, Bucindolol, Bufuralol, Bupivacaine, Bupranolol, Buprenorphine, Buspirone, Butyrfentanyl, Caffeine, Cannabidiol, Cariprazine, Carteolol, Carvedilol, Celecoxib, Celiprolol, Cevimeline, Chloroquine, Chlorpheniramine, Chlorpromazine, Chlorzoxazone, Ciclesonide, Cilostazol, Cinnarizine, Citalopram, Clevidipine, Clomipramine, Clonidine, Cloranolol, Clozapine, Codeine, Cyclobenzaprine, Dacomitinib, Dapagliflozin, Dapoxetine, Darifenacin, Dasabuvir, Debrisoquine, Delavirdine, Desipramine, Deutetrabenazine, Dexchlorpheniramine, Dexchlorpheniramine maleate, Dexfenfluramine, Dextroamphetamine, Dextromethorphan, Dextropropoxyphene, Dihydrocodeine, Diltiazem, Dolasetron, Domperidone, Donepezil, Dosulepin, Doxazosin, Doxepin, Dronedarone, Duloxetine, Elagolix, Eletriptan, Eliglustat, Enasidenib, Encainide, Enclomiphene, Encorafenib, Epanolol, Epinastine, Erlotinib, Esatenolol, Escitalopram, Esmirtazapine, Esmolol, Ethylmorphine, Fenfluramine, Fesoterodine, Flecainide, Flunarizine, Fluoxetine, Fluvastatin, Fluvoxamine, Formoterol, Fusidic acid, Galantamine, Gefitinib, Haloperidol, Hydrocodone, Hydroxychloroquine, Ibrutinib, Idarubicin, Iloperidone, Imatinib, Imipramine, Indenolol, Ipecac, Istradefylline, Ixazomib, Labetalol, Landiolol, Letermovir, Levobetaxolol, Levobunolol, Levomilnacipran, Lidocaine, Lisdexamfetamine, Lofexidine, Loperamide, Lopinavir, Loratadine, Lorcaserin, Lorpiprazole, Lysergic acid diethylamide, Maprotiline, Meclizine, Meperidine, Mephenytoin, Mepindolol, Mequitazine, Mesoridazine, Metamfetamine, Methadone, Methotrimeprazine, Methoxyflurane, Methylene blue, Metipranolol, Metoclopramide, Metoprolol, Mexiletine, Mianserin, Midodrine, Midomafetamine, Minaprine, Mirabegron, Mirtazapine, Moclobemide, Nabiximols, Nateglinide, Nebivolol, Nefazodone, Netupitant, Nevirapine, Nicergoline, Nicotine, Nortriptyline, Olanzapine, Oliceridine, Ondansetron, Opium, Osilodrostat, Oxamniquine, Oxprenolol, Oxycodone, Oxymorphone, Paliperidone, Palonosetron, Paroxetine, Penbutolol, Pentamidine, Perhexiline, Perospirone, Perphenazine, Phenacetin, Phenformin, Phenytoin, Pindolol, Piperazine, Pipotiazine, Pirfenidone, Pitolisant, Ponatinib, Practolol, Pralsetinib, Procainamide, Prochlorperazine, Progesterone, Promazine, Promethazine, Propacetamol, Propafenone, Propranolol, Quetiapine, Quinine, Ranolazine, Remdesivir, Remoxipride, Repinotan, Revefenacin, Ripretinib, Risperidone, Ritonavir, Rotigotine, Rucaparib, Rupatadine, Selegiline, Sertindole, Sertraline, Sildenafil, Simvastatin, Solifenacin, Sotalol, Sparteine, Tafenoquine, Talinolol, Tamoxifen, Tamsulosin, Tapentadol, Tegaserod, Terfenadine, Tertatolol, Tesmilifene, Tetrabenazine, Theophylline, Thioridazine, Ticlopidine, Timolol, Tiotropium, Tipranavir, Tolterodine, Trabectedin, Tramadol, Trazodone, Triclabendazole, Trimipramine, Umeclidinium, Umifenovir, Upadacitinib, Valbenazine, Venlafaxine, Vernakalant, Vilazodone, Vortioxetine, Yohimbine, Zolpidem, Zuclopenthixol
2	Cytochrome P450 2D6 inhibitors	1-(2-Phenylethyl)-4-phenyl-4-acetoxypiperidine, Abemaciclib, Abiraterone, Acebutolol, Amiodarone, Amlodipine, Amodiaquine, Amoxapine, Artenimol, Asenapine, Asunaprevir, Atorvastatin, Azelastine, Bepridil, Berotralstat, Bicalutamide, Biperiden, Black cohosh, Buprenorphine, Bupropion, Cannabidiol, Celecoxib, Cerivastatin, Chloroquine, Chlorpheniramine, Chlorpromazine, Cimetidine, Cinacalcet, Cisapride, Citalopram, Clascoterone, Clemastine, Clinafloxacin, Clobazam, Clofazimine, Clomipramine, Clotrimazole, Clozapine, Cobicistat, Cocaine, Curcumin, Curcumin sulfate, Cyclosporine, Dacomitinib, Darifenacin, Darunavir, Delavirdine, Deramciclane, Desipramine, Desvenlafaxine, Dexchlorpheniramine, Dexchlorpheniramine maleate, Dexfenfluramine, Dexmedetomidine, Dextropropoxyphene, Diacerein, Dimethyl sulfoxide, Dosulepin, Doxepin, Doxorubicin, Dronedarone, Duloxetine, Efavirenz, Elexacaftor, Eliglustat, Enasidenib, Entacapone, Epinastine, Escitalopram, Ethambutol, Etoricoxib, Everolimus, Fedratinib, Felodipine, Fenfluramine, Flecainide, Fluoxetine, Fluphenazine, Fluvoxamine, Fusidic acid, Gefitinib, Glycerol phenylbutyrate, Halofantrine, Haloperidol, Hydroxychloroquine, Hydroxyurea, Hydroxyzine, Imatinib, Imipramine, Indinavir, Indisulam, Iproniazid, Isavuconazole, Isoniazid, Ketoconazole, Labetalol, Lansoprazole, Lasmiditan, Lenvatinib, Lercanidipine, Lidocaine, Lisdexamfetamine, Lomustine, Loratadine, Lorcaserin, Lumefantrine, Manidipine, Medical Cannabis, Melperone, Menadione, Mepyramine, Methadone, Methimazole, Methotrimeprazine, Methylene blue, Metoclopramide, Metoprolol, Mibefradil, Miconazole, Midostaurin, Mifepristone, Mirabegron, Mizolastine, Moclobemide, Nabiximols, Naloxegol, Nefazodone, Nelfinavir, Nevirapine, Niacin, Nicardipine, Nicotinamide, Nifedipine, Nilotinib, Nortriptyline, Olanzapine, Omeprazole, Oritavancin, Orphenadrine, Osilodrostat, Ospemifene, Oxamniquine, Oxprenolol, Oxybutynin, Oxymetholone, Panobinostat, Paroxetine, Pazopanib, Peginterferon alfa-2b, Perhexiline, Perphenazine, Phenelzine, Phenylbutyric acid, Pimozide, Pindolol, Pipotiazine, Pitolisant, Primaquine, Proguanil, Promethazine, Propafenone, Propranolol, Quinidine, Quinine, Rabeprazole, Ranitidine, Ranolazine, Reboxetine, Rhein, Rilpivirine, Risperidone, Ritanserin, Ritonavir, Rolapitant, Rosiglitazone, Rotigotine, Rucaparib, Safinamide, Saquinavir, Selegiline, Sertraline, Sorafenib, Sparteine, St. John's Wort, Stiripentol, Sulconazole, Sulfanilamide, Sulfaphenazole, Tamoxifen, Tegaserod, Temsirolimus, Terbinafine, Terfenadine, Thioridazine, Thiothixene, Ticlopidine, Tipranavir, Tirbanibulin, Tranylcypromine, Trazodone, Triclabendazole, Tripelennamine, Trospium, Ubrogepant, Vemurafenib, Venlafaxine, Verapamil, Vernakalant, Vinblastine, Vinorelbine, Zafirlukast
3	Cytochrome P450 2D6 inducers	Modafinil, Oritavancin

	Interacting Group	Interacting Drugs
	Diphenhydramine is a Cytochrome P450 2C9 substrate
1	Cytochrome P450 2C9 inhibitors	Abemaciclib, Abiraterone, Acetyl sulfisoxazole, Agomelatine, Amiodarone, Amodiaquine, Anastrozole, Aprepitant, Armodafinil, Atazanavir, Atorvastatin, Atovaquone, Avasimibe, Azelastine, Belinostat, Benzbromarone, Bicalutamide, Black cohosh, Bortezomib, Candesartan, Capecitabine, Casimersen, Ceritinib, Cerivastatin, Cimetidine, Cisapride, Cisplatin, Clascoterone, Clevidipine, Clinafloxacin, Clopidogrel, Clotrimazole, Crisaborole, Curcumin, Curcumin sulfate, Cyclizine, Delavirdine, Dexloxiglumide, Diacerein, Diethylstilbestrol, Doconexent, Dosulepin, Efavirenz, Elexacaftor, Enasidenib, Epinephrine, Estrone sulfate, Ethambutol, Ethanol, Etoricoxib, Etravirine, Felbamate, Felodipine, Fenofibrate, Flecainide, Floxuridine, Fluconazole, Fluorouracil, Fluoxetine, Fluvastatin, Fluvoxamine, Gefitinib, Gemfibrozil, Genistein, Ginkgo biloba, Glyburide, Imatinib, Iproniazid, Isavuconazole, Isoniazid, Ketoconazole, Ketoprofen, Lansoprazole, Leflunomide, Lenvatinib, Levofloxacin, Lifitegrast, Lobeglitazone, Lopinavir, Lumacaftor, Manidipine, Medical Cannabis, Medroxyprogesterone acetate, Mefenamic acid, Menadione, Methimazole, Methylene blue, Metronidazole, Miconazole, Midostaurin, Mifepristone, Modafinil, Nabilone, Nicardipine, Nifedipine, Nilotinib, Noscapine, Olanzapine, Opicapone, Oritavancin, Oxandrolone, Paroxetine, Pexidartinib, Phenylbutazone, Phenytoin, Pralsetinib, Pranlukast, Probenecid, Progesterone, Promethazine, Quinidine, Rabeprazole, Regorafenib, Rhein, Rifamycin, Rilpivirine, Rucaparib, Seproxetine, Sertraline, Sildenafil, Simvastatin, Sitaxentan, Sorafenib, Stiripentol, Sulconazole, Sulfadiazine, Sulfadimethoxine, Sulfamethizole, Sulfamethoxazole, Sulfamoxole, Sulfaphenazole, Sulfapyridine, Sulfinpyrazone, Sulfisoxazole, Suprofen, Tamoxifen, Teniposide, Ticagrelor, Ticlopidine, Tienilic acid, Tirbanibulin, Tolcapone, Topiroxostat, Torasemide, Tranylcypromine, Troglitazone, Ubrogepant, Valdecoxib, Valproic acid, Vemurafenib, Verapamil, Vismodegib, Voriconazole, Zafirlukast, Zucapsaicin
2	Cytochrome P450 2C9 substrates	(R)-warfarin, (S)-Warfarin, Aceclofenac, Acenocoumarol, Acetohexamide, Acetylsalicylic acid, Alosetron, Alprazolam, Aminophenazone, Amitriptyline, Amprenavir, Antipyrine, Apixaban, Arachidonic Acid, Arformoterol, Artemether, Asunaprevir, Atazanavir, Avanafil, Avapritinib, Azelastine, Bioallethrin, Bortezomib, Bosentan, Brivaracetam, Buprenorphine, Bupropion, Cabozantinib, Caffeine, Candesartan, Candesartan cilexetil, Cannabidiol, Capecitabine, Capravirine, Carbutamide, Carvedilol, Celecoxib, Chlorpropamide, Cinnarizine, Clopidogrel, Clozapine, Coumarin, Cyclophosphamide, Dacomitinib, Dapagliflozin, Dapsone, Desogestrel, Dexibuprofen, Dexloxiglumide, Dextromethorphan, Diazepam, Diclofenac, Dicoumarol, Doconexent, Dolasetron, Donepezil, Dorzolamide, Doxazosin, Doxepin, Dronabinol, Duloxetine, Eletriptan, Enasidenib, Enzalutamide, Erdafitinib, Esketamine, Estradiol, Estradiol acetate, Estradiol benzoate, Estradiol cypionate, Estradiol dienanthate, Estradiol valerate, Estrone, Estrone sulfate, Ethinylestradiol, Etodolac, Etoricoxib, Etravirine, Febuxostat, Fenfluramine, Fluindione, Flunarizine, Flunitrazepam, Fluoxetine, Flurbiprofen, Fluvastatin, Formoterol, Fosphenytoin, Glibornuride, Gliclazide, Glimepiride, Glipizide, Gliquidone, Glisoxepide, Glyburide, Haloperidol, Halothane, Hexobarbital, Hydromorphone, Ibuprofen, Idarubicin, Ifosfamide, Imatinib, Indisulam, Indomethacin, Irbesartan, Istradefylline, Ixazomib, Ketamine, Ketobemidone, Ketoprofen, Ketorolac, Lacosamide, Leflunomide, Lesinurad, Licofelone, Lidocaine, Lonafarnib, Loratadine, Lornoxicam, Losartan, Lumiracoxib, Lynestrenol, Medical Cannabis, Mefenamic acid, Melatonin, Meloxicam, Mephenytoin, Mestranol, Metahexamide, Methadone, Methoxyflurane, Moclobemide, Montelukast, Nabiximols, Nabumetone, Naproxen, Nateglinide, Netupitant, Niclosamide, Nicotine, Norgestimate, Oliceridine, Olodaterol, Omeprazole, Ondansetron, Ospemifene, Paramethadione, Parecoxib, Perphenazine, Phenacetin, Phenobarbital, Phenprocoumon, Phenylbutazone, Phenytoin, Piperaquine, Pirfenidone, Piroxicam, Pitavastatin, Prasugrel, Primidone, Progesterone, Proguanil, Promazine, Propacetamol, Propofol, Quazepam, Quinidine, Quinine, Ramelteon, Rimegepant, Rofecoxib, Rosiglitazone, Rosuvastatin, Rupatadine, Ruxolitinib, Salicylic acid, Selegiline, Selumetinib, Seratrodast, Sertraline, Sildenafil, Siponimod, Sitaxentan, Sulfamethoxazole, Suprofen, Tamoxifen, Tapentadol, Temazepam, Tenoxicam, Terbinafine, Testosterone, Testosterone cypionate, Testosterone enanthate, Testosterone undecanoate, Thalidomide, Thiamylal, Tolazamide, Tolbutamide, Tolterodine, Torasemide, Trabectedin, Tranilast, Treprostinil, Tretinoin, Triclabendazole, Trifarotene, Trimethadione, Trimethoprim, Trimipramine, Troglitazone, Umbralisib, Umifenovir, Valdecoxib, Valproic acid, Valsartan, Verapamil, Vicriviroc, Vismodegib, Voriconazole, Vortioxetine, Voxelotor, Warfarin, Ximelagatran, Zafirlukast, Zaltoprofen, Zidovudine, Zileuton, Zolpidem, Zopiclone
3	Cytochrome P450 2C9 inducers	Alpelisib, Apalutamide, Aprepitant, Avatrombopag, Betamethasone, Bosentan, Budesonide, Carbamazepine, Dabrafenib, Dapsone, Delafloxacin, Enzalutamide, Fosaprepitant, Fosphenytoin, Hydrocortisone, Isavuconazole, Ivosidenib, Lansoprazole, Letermovir, Lopinavir, Lumacaftor, Methylprednisolone, Midostaurin, Modafinil, Nelfinavir, Nevirapine, Nifedipine, Peginterferon alfa-2b, Phenobarbital, Phenytoin, Pralsetinib, Prednisolone phosphate, Prednisone, Primidone, Rifabutin, Rifampicin, Rifamycin, Rifapentine, Ritonavir, Secobarbital, Vigabatrin, Warfarin
4	Cytochrome P450 2C9 inactivators	Suprofen

	Interacting Group	Interacting Drugs
	Diphenhydramine is a Cytochrome P450 2C19 substrate
1	Cytochrome P450 2C19 substrates	(R)-warfarin, (S)-Warfarin, Acenocoumarol, Adinazolam, Albendazole, Almotriptan, Ambrisentan, Aminophenazone, Amiodarone, Amitriptyline, Antipyrine, Apixaban, Aprepitant, Arformoterol, Artemether, Asunaprevir, Atomoxetine, Axitinib, Azelastine, Barbital, Binimetinib, Bioallethrin, Bortezomib, Brivaracetam, Bromazepam, Bupivacaine, Cannabidiol, Capravirine, Carisoprodol, Cenobamate, Chlorpropamide, Cilostazol, Cisapride, Citalopram, Clobazam, Clomethiazole, Clomipramine, Clopidogrel, Clotiazepam, Clozapine, Cyclophosphamide, Dapsone, Dexibuprofen, Dexlansoprazole, Dexrabeprazole, Dextromethorphan, Diazepam, Diclofenac, Diltiazem, Doxazosin, Doxepin, Eletriptan, Enasidenib, Encorafenib, Enfuvirtide, Escitalopram, Esketamine, Esomeprazole, Estradiol, Estradiol acetate, Estradiol benzoate, Estradiol cypionate, Estradiol dienanthate, Estradiol valerate, Etizolam, Etravirine, Fedratinib, Fenfluramine, Flunitrazepam, Fluoxetine, Formoterol, Fosphenytoin, Gliclazide, Glyburide, Guanfacine, Haloperidol, Hexobarbital, Hydrocodone, Ibuprofen, Ifosfamide, Imatinib, Imipramine, Indomethacin, Ixazomib, Ketobemidone, Labetalol, Lacosamide, Lansoprazole, Lapatinib, Levomilnacipran, Lofexidine, Lonafarnib, Loratadine, Lorcaserin, Lorlatinib, Lovastatin, Lumiracoxib, Lynestrenol, Macitentan, Medical Cannabis, Melatonin, Meperidine, Mephenytoin, Methadone, Methsuximide, Methylene blue, Methylphenobarbital, Moclobemide, Nabiximols, Nebivolol, Nelfinavir, Nicotine, Nilutamide, Norethisterone, Nortriptyline, Oliceridine, Omeprazole, Ospemifene, Oxiconazole, Oxymetazoline, Pantoprazole, Paroxetine, Pentamidine, Pentobarbital, Perphenazine, Phenacetin, Phenobarbital, Phenytoin, Piperaquine, Pipotiazine, Pirfenidone, Prasugrel, Praziquantel, Primidone, Progesterone, Proguanil, Promazine, Propofol, Propranolol, Quazepam, Quetiapine, Quinine, Rabeprazole, Ramelteon, Rilpivirine, Romidepsin, Rupatadine, Selegiline, Selumetinib, Seratrodast, Sertraline, Sildenafil, Simvastatin, St. John's Wort, Stiripentol, Tamoxifen, Tapentadol, Teniposide, Terbinafine, Testosterone, Testosterone cypionate, Testosterone enanthate, Testosterone undecanoate, Thalidomide, Thiopental, Thioridazine, Ticlopidine, Timolol, Tipranavir, Tofacitinib, Tolbutamide, Tolterodine, Trabectedin, Triclabendazole, Trimethadione, Trimipramine, Valproic acid, Verapamil, Vilazodone, Voriconazole, Vortioxetine, Voxelotor, Warfarin, Zolpidem, Zonisamide
2	Cytochrome P450 2C19 inhibitors	Abiraterone, Alpelisib, Amiodarone, Amitriptyline, Amprenavir, Aprepitant, Armodafinil, Artenimol, Atorvastatin, Avasimibe, Azelastine, Benzbromarone, Bicalutamide, Bortezomib, Buprenorphine, Carbamazepine, Casimersen, Cenobamate, Chloramphenicol, Cimetidine, Cisapride, Citalopram, Clascoterone, Clevidipine, Clinafloxacin, Clozapine, Curcumin sulfate, Cyclosporine, Dabrafenib, Delavirdine, Dexlansoprazole, Diazepam, Dimethyl sulfoxide, Dosulepin, Dovitinib, Duloxetine, Elexacaftor, Enasidenib, Eslicarbazepine, Eslicarbazepine acetate, Esomeprazole, Ethambutol, Ethanol, Ethinylestradiol, Etoricoxib, Etravirine, Felbamate, Fenofibrate, Fluconazole, Fluoxetine, Fluvastatin, Fluvoxamine, Gefitinib, Gemfibrozil, Gestodene, Idelalisib, Imipramine, Indomethacin, Isavuconazole, Isoniazid, Ketoconazole, Lansoprazole, Lenvatinib, Letrozole, Lobeglitazone, Lonafarnib, Lopinavir, Loratadine, Losartan, Luliconazole, Lynestrenol, Manidipine, Memantine, Menadione, Mephenytoin, Methimazole, Methsuximide, Methylene blue, Miconazole, Midostaurin, Moclobemide, Modafinil, Naloxegol, Nicardipine, Nilutamide, Nilvadipine, Olanzapine, Omeprazole, Oritavancin, Osilodrostat, Oxcarbazepine, Pantoprazole, Phenelzine, Piperaquine, Progesterone, Quinine, Rabeprazole, Rifamycin, Rilpivirine, Rucaparib, Safinamide, Seproxetine, Sertraline, Sildenafil, Sitaxentan, Somapacitan, Somatotropin, Sorafenib, Stiripentol, Sulfanilamide, Telmisartan, Thalidomide, Ticlopidine, Tioconazole, Tipranavir, Tirbanibulin, Topiramate, Topiroxostat, Tranylcypromine, Triclabendazole, Troglitazone, Ubrogepant, Valproic acid, Vismodegib, Voriconazole, Warfarin, Zafirlukast, Zonisamide, Zucapsaicin
3	Cytochrome P450 2C19 inducers	Acetylsalicylic acid, Aminoglutethimide, Apalutamide, Artemether, Barbital, Betamethasone, Budesonide, Carbamazepine, Dabrafenib, Dexamethasone, Dexamethasone acetate, Efavirenz, Enzalutamide, Hydrocortisone, Hydroxyprogesterone caproate, Letermovir, Lumacaftor, Methylprednisolone, Midostaurin, Nelfinavir, Norethisterone, Opicapone, Phenobarbital, Phenytoin, Prednisolone phosphate, Prednisone, Primidone, Rifabutin, Rifampicin, Rifamycin, Rifapentine, Rifaximin, Ritonavir, Secobarbital, St. John's Wort

	Interacting Group	Interacting Drugs
	Diphenhydramine is a Prostaglandin G/H synthase 1 substrate
1	Prostaglandin G/H synthase 1 inhibitors	Aceclofenac, Acetaminophen, Acetylsalicylic acid, Antipyrine, Antrafenine, Balsalazide, Bromfenac, Bufexamac, Cannabidiol, Carprofen, Choline magnesium trisalicylate, Dexibuprofen, Dexketoprofen, Diclofenac, Diethylcarbamazine, Diflunisal, Dihomo-gamma-linolenic acid, Droxicam, Etodolac, Fenoprofen, Flurbiprofen, Hyperforin, Ibuprofen, Icosapent, Indomethacin, Ketoprofen, Ketorolac, Lornoxicam, Lumiracoxib, Magnesium salicylate, Meclofenamic acid, Medical Cannabis, Mefenamic acid, Meloxicam, Mesalazine, Nabiximols, Nabumetone, Naproxen, Nepafenac, Nitroaspirin, Oxaprozin, Phenylbutazone, Piroxicam, Resveratrol, Salicylic acid, Salsalate, Sulfasalazine, Sulindac, Suprofen, Talniflumate, Tenoxicam, Tiaprofenic acid, Tolmetin, Trolamine salicylate
2	Prostaglandin G/H synthase 1 inducers	Desmopressin, Minoxidil
3	Prostaglandin G/H synthase 1 substrates	Candesartan, Candesartan cilexetil, Chlorpropamide, Dapsone, Diazepam, Dronabinol, Eletriptan, Etoposide, Hexobarbital, Ifosfamide, Imatinib, Irbesartan, Ketamine, Ketobemidone, Montelukast, Nateglinide, Rofecoxib, Rosiglitazone, Seratrodast, Terbinafine, Thalidomide, Trabectedin, Valproic acid, Voriconazole, Zafirlukast, Zaltoprofen, Zileuton, Zopiclone
4	Prostaglandin G/H synthase 1 antagonists	Acemetacin, Dexketoprofen, Glycol salicylate, Loxoprofen, Menthyl salicylate, Phenyl salicylate, Propacetamol, Talniflumate, Tolfenamic acid, Triflusal

	Interacting Group	Interacting Drugs
	Diphenhydramine is a Solute carrier family 22 member 2 inhibitor
1	Solute carrier family 22 member 2 inhibitors	Abemaciclib, Amantadine, Amiloride, Aminohippuric acid, Amiodarone, Apalutamide, Baricitinib, Bupropion, Chlorpheniramine, Choline, Choline salicylate, Cimetidine, Cisplatin, Clopidogrel, Cocaine, Desipramine, Dexchlorpheniramine maleate, Dinoprostone, Disopyramide, Dolutegravir, Dopamine, Dronedarone, Enasidenib, Erdafitinib, Estradiol, Estradiol acetate, Estradiol benzoate, Estradiol cypionate, Estradiol dienanthate, Estradiol valerate, Famotidine, Flurazepam, Grepafloxacin, Guanidine, Histamine, Imatinib, Imipramine, Isavuconazole, Lamotrigine, Lenvatinib, Levofloxacin, Linagliptin, Metformin, Methylene blue, Metoprolol, Nicotine, Norepinephrine, Osilodrostat, Oxprenolol, Pemigatinib, Phenformin, Phenoxybenzamine, Pimagedine, Probenecid, Procainamide, Progesterone, Propranolol, Quinacrine, Quinidine, Quinine, Rimegepant, Salmeterol, Tafenoquine, Thiamine, Tirbanibulin, Trilaciclib, Tucatinib, Ubrogepant, Vandetanib, Varenicline
2	Solute carrier family 22 member 2 substrates	Agmatine, Amantadine, Choline, Choline salicylate, Cimetidine, Cisplatin, Dalfampridine, Dofetilide, Dopamine, Epinephrine, Guanfacine, Histamine, Lamivudine, Linagliptin, Memantine, Metformin, Nafamostat, Norepinephrine, Oxaliplatin, Pramipexole, Ranitidine, Reserpine, Sulpiride, Terbutaline, Tetraethylammonium, Tipiracil, Varenicline

	Interacting Group	Interacting Drugs
	Diphenhydramine is a Solute carrier family 22 member 5 inhibitor
1	Solute carrier family 22 member 5 inhibitors	Acetylcholine, Aldosterone, Aminohippuric acid, Ampicillin, Arginine, Azidocillin, Benzylpenicillin, Cefadroxil, Cefalotin, Cefdinir, Cefepime, Cefixime, Cefradine, Ceftazidime, Cephalexin, Cephaloglycin, Choline, Choline salicylate, Cimetidine, Clonidine, Creatine, Cyclacillin, Dactinomycin, Desipramine, Dopamine, Furosemide, Grepafloxacin, Guanidine, Histamine, Levamlodipine, Lidocaine, Lomefloxacin, Metamfetamine, Methacholine, Niacin, Nicotine, Norepinephrine, Norfloxacin, Ofloxacin, Probenecid, Procainamide, Quinidine, Quinine, Sparfloxacin, Thiamine, Valproic acid, Verapamil
2	Solute carrier family 22 member 5 substrates	Amphetamine, Formoterol, Ipratropium, Levocarnitine, Terbutaline, Tiotropium