Drug Interactions Guide

Evidence-based information on common drug-drug interactions. Each entry includes severity, mechanism, and clinical recommendations.

Browse 995 Common Interactions

Abemaciclib & Ketoconazole

Moderate

Abiraterone & Prednisolone

Moderate

Abiraterone & Spironolactone

Moderate

Ace Inhibitor & Allopurinol

Moderate

Ace Inhibitor & Lithium

Moderate

Ace Inhibitor & Potassium Sparing Diuretic

Moderate

Ace Inhibitor & Potassium Supplements

Moderate

Ace Inhibitor & Potassium

Moderate

Ace Inhibitor & Sacubitril Valsartan

Moderate

Ace Inhibitor & Spironolactone

Moderate

Ace Inhibitor & Trimethoprim

Moderate

Ace Inhibitors & Spironolactone

Moderate

Acenocoumarol & Fluconazole

Moderate

Acenocoumarol & Miconazole

Moderate

Acetaminophen & Isoniazid

Moderate

Acetaminophen & Warfarin

Moderate

Acetazolamide & Topiramate

Moderate

Acetylsalicylic Acid & Ibuprofen

Moderate

Acetylsalicylic Acid & Warfarin

Moderate

Acyclovir & Tacrolimus

Moderate

Acyclovir & Tenofovir Disoproxil

Moderate

Adalimumab & Anakinra

Moderate

Adenosine & Dipyridamole

Moderate

Alcohol & Disulfiram

Moderate

Alcohol & Metronidazole

Moderate

Alcohol & Zolpidem

Moderate

Alcohol & Zopiclone

Moderate

Alendronate & Calcium Carbonate

Moderate

Alendronic Acid & Calcium Carbonate

Moderate

Alendronic Acid & Omeprazole

Moderate

Alfuzosin & Ketoconazole

Moderate

Alfuzosin & Tamsulosin

Moderate

Aliskiren & Lisinopril

Moderate

Allopurinol & Amoxicillin

Moderate

Allopurinol & Ampicillin

Moderate

Allopurinol & Azathioprine

Moderate

Allopurinol & Mercaptopurine

Moderate

Alpha Blocker & Sildenafil

Moderate

Alprazolam & Clarithromycin

Moderate

Alprazolam & Fluvoxamine

Moderate

Alprazolam & Itraconazole

Moderate

Alprazolam & Oxycodone

Moderate

Alprazolam & Ritonavir

Moderate

Alteplase & Enoxaparin

Moderate

Aluminium Hydroxide & Ciprofloxacin

Moderate

Aluminium Hydroxide & Doxycycline

Moderate

Aluminium Hydroxide & Gabapentin

Moderate

Amiloride & Lisinopril

Moderate

Amiodarone & Atorvastatin

Moderate

Amiodarone & Azithromycin

Moderate

Amiodarone & Dabigatran

Moderate

Amiodarone & Flecainide

Moderate

Amiodarone & Simvastatin

Moderate

Amiodarone & Sofosbuvir

Moderate

Amiodarone & Sotalol

Moderate

Amiodarone & Warfarin

Moderate

Amitriptyline & Bupropion

Moderate

Amitriptyline & Fluoxetine

Moderate

Amitriptyline & Linezolid

Moderate

Amitriptyline & Terbinafine

Moderate

Amitriptyline & Tramadol

Moderate

Amlodipine & Atorvastatin

Moderate

Amlodipine & Ciclosporin

Moderate

Amlodipine & Clarithromycin

Moderate

Amlodipine & Diltiazem

Moderate

Amlodipine & Grapefruit Juice

Moderate

Amlodipine & Simvastatin

Moderate

Amlodipine & Tacrolimus

Moderate

Amoxicillin & Methotrexate

Moderate

Amoxicillin & Warfarin

Moderate

Amoxicillin Clavulanate & Warfarin

Moderate

Amphotericin B & Ciclosporin

Moderate

Amphotericin B & Furosemide

Moderate

Amphotericin B & Tacrolimus

Moderate

Apixaban & Aspirin

Moderate

Apixaban & Carbamazepine

Moderate

Apixaban & Clarithromycin

Moderate

Apixaban & Diltiazem

Moderate

Apixaban & Fluconazole

Moderate

Apixaban & Itraconazole

Moderate

Apixaban & Ketoconazole

Moderate

Apixaban & Naproxen

Moderate

Apixaban & Rifampicin

Moderate

Apixaban & Ritonavir

Moderate

Aspirin & Clopidogrel

Moderate

Aspirin & Methotrexate

Moderate

Aspirin & Ramipril

Moderate

Atazanavir & Esomeprazole

Moderate

Atazanavir & Omeprazole

Moderate

Atazanavir & Pantoprazole

Moderate

Atenolol & Clonidine

Moderate

Atenolol & Ibuprofen

Moderate

Atenolol & Verapamil

Moderate

Atomoxetine & Fluoxetine

Moderate

Atomoxetine & Paroxetine

Moderate

Atorvastatin & Ciclosporin

Moderate

Atorvastatin & Clarithromycin

Moderate

Atorvastatin & Cyclosporine

Moderate

Atorvastatin & Digoxin

Moderate

Atorvastatin & Diltiazem

Moderate

Atorvastatin & Fusidic Acid

Moderate

Atorvastatin & Gemfibrozil

Moderate

Atorvastatin & Itraconazole

Moderate

Atorvastatin & Rifampicin

Moderate

Atorvastatin & Verapamil

Moderate

Azathioprine & Febuxostat

Moderate

Azithromycin & Citalopram

Moderate

Azithromycin & Digoxin

Moderate

Azithromycin & Domperidone

Moderate

Azithromycin & Escitalopram

Moderate

Azithromycin & Haloperidol

Moderate

Azithromycin & Hydroxychloroquine

Moderate

Azithromycin & Ondansetron

Moderate

Azithromycin & Quetiapine

Moderate

Azithromycin & Sotalol

Moderate

Azithromycin & Warfarin

Moderate

Azole Antifungal & Midazolam

Moderate

Azole Antifungal & Tacrolimus

Moderate

Baclofen & Morphine

Moderate

Beta Blockers & Verapamil

Moderate

Bisoprolol & Diltiazem

Moderate

Bisoprolol & Salbutamol

Moderate

Bisoprolol & Verapamil

Moderate

Buprenorphine & Diazepam

Moderate

Bupropion & Metoprolol

Moderate

Bupropion & Tamoxifen

Moderate

Caffeine & Ciprofloxacin

Moderate

Calcium & Ciprofloxacin

Moderate

Calcium Carbonate & Ceftriaxone

Moderate

Calcium Carbonate & Ciprofloxacin

Moderate

Calcium Carbonate & Doxycycline

Moderate

Calcium Carbonate & Levothyroxine

Moderate

Calcium Carbonate & Thyroid Hormone

Moderate

Calcium Carbonate & Thyroxine

Moderate

Calcium Channel Blocker & Beta Blocker

Moderate

Calcium Containing Iv Solutions & Ceftriaxone

Moderate

Calcium Gluconate & Ceftriaxone

Moderate

Canagliflozin & Furosemide

Moderate

Candesartan & Spironolactone

Moderate

Capecitabine & Warfarin

Moderate

Captopril & Lithium

Moderate

Captopril & Potassium Chloride

Moderate

Captopril & Spironolactone

Moderate

Carbamazepine & Clarithromycin

Moderate

Carbamazepine & Clozapine

Moderate

Carbamazepine & Combined Oral Contraceptive

Moderate

Carbamazepine & Combined Oral Contraceptives

Moderate

Carbamazepine & Doxycycline

Moderate

Carbamazepine & Erythromycin

Moderate

Carbamazepine & Ethinylestradiol

Moderate

Carbamazepine & Etinylestradiol

Moderate

Carbamazepine & Fluvoxamine

Moderate

Carbamazepine & Lamotrigine

Moderate

Carbamazepine & Olanzapine

Moderate

Carbamazepine & Oral Contraceptives

Moderate

Carbamazepine & Quetiapine

Moderate

Carbamazepine & Rivaroxaban

Moderate

Carbamazepine & Sertraline

Moderate

Carbamazepine & Simvastatin

Moderate

Carbamazepine & Tacrolimus

Moderate

Carbamazepine & Ticagrelor

Moderate

Carbamazepine & Valproate

Moderate

Carbamazepine & Valproic Acid

Moderate

Carbamazepine & Voriconazole

Moderate

Carbamazepine & Warfarin

Moderate

Carbapenem & Valproate

Moderate

Carbapenems & Valproate

Moderate

Carbidopa Levodopa & Ferrous Sulfate

Moderate

Carbidopa Levodopa & Iron Sulfate

Moderate

Carbidopa Levodopa & Metoclopramide

Moderate

Carvedilol & Ciclosporin

Moderate

Carvedilol & Clonidine

Moderate

Carvedilol & Cyclosporine

Moderate

Carvedilol & Digoxin

Moderate

Carvedilol & Fingolimod

Moderate

Carvedilol & Fluoxetine

Moderate

Carvedilol & Insulin

Moderate

Carvedilol & Verapamil

Moderate

Cefotaxime & Probenecid

Moderate

Ceftriaxone & Ringer Lactate

Moderate

Ceftriaxone & Ringers Lactate

Moderate

Ceftriaxone & Warfarin

Moderate

Celecoxib & Fluconazole

Moderate

Celecoxib & Lithium

Moderate

Cetirizine & Zolpidem

Moderate

Chloramphenicol & Gliclazide

Moderate

Chlorpromazine & Levodopa

Moderate

Cholestyramine & Digoxin

Moderate

Cholestyramine & Levothyroxine

Moderate

Ciclosporin & Clarithromycin

Moderate

Ciclosporin & Colchicine

Moderate

Ciclosporin & Diltiazem

Moderate

Ciclosporin & Fluconazole

Moderate

Ciclosporin & Grapefruit Juice

Moderate

Ciclosporin & Pravastatin

Moderate

Ciclosporin & Rosuvastatin

Moderate

Ciclosporin & Simvastatin

Moderate

Ciclosporin & St Johns Wort

Moderate

Ciclosporin & Verapamil

Moderate

Cimetidine & Metformin

Moderate

Cimetidine & Theophylline

Moderate

Ciprofloxacin & Clozapine

Moderate

Ciprofloxacin & Duloxetine

Moderate

Ciprofloxacin & Ferrous Sulfate

Moderate

Ciprofloxacin & Glibenclamide

Moderate

Ciprofloxacin & Olanzapine

Moderate

Ciprofloxacin & Rasagiline

Moderate

Ciprofloxacin & Sevelamer

Moderate

Ciprofloxacin & Sucralfate

Moderate

Ciprofloxacin & Theophylline

Moderate

Ciprofloxacin & Tinidazole

Moderate

Ciprofloxacin & Tizanidine

Moderate

Ciprofloxacin & Warfarin

Moderate

Cisplatin & Furosemide

Moderate

Cisplatin & Gentamicin

Moderate

Cisplatin & Vancomycin

Moderate

Citalopram & Fluconazole

Moderate

Citalopram & Haloperidol

Moderate

Citalopram & Linezolid

Moderate

Citalopram & Omeprazole

Moderate

Citalopram & Ondansetron

Moderate

Citalopram & Sotalol

Moderate

Citalopram & Tramadol

Moderate

Clarithromycin & Colchicine

Moderate

Clarithromycin & Digoxin

Moderate

Clarithromycin & Ergotamine

Moderate

Clarithromycin & Nifedipine

Moderate

Clarithromycin & Pimozide

Moderate

Clarithromycin & Quetiapine

Moderate

Clarithromycin & Simvastatin

Moderate

Clarithromycin & Tacrolimus

Moderate

Clarithromycin & Ticagrelor

Moderate

Clarithromycin & Verapamil

Moderate

Clarithromycin & Warfarin

Moderate

Clopidogrel & Esomeprazole

Moderate

Clopidogrel & Fluconazole

Moderate

Clopidogrel & Fluoxetine

Moderate

Clopidogrel & Omeprazole

Moderate

Clopidogrel & Rosuvastatin

Moderate

Clopidogrel & Ssri

Moderate

Clopidogrel & Warfarin

Moderate

Clozapine & Fluvoxamine

Moderate

Clozapine & Smoking Cessation

Moderate

Clozapine & Smoking Tobacco

Moderate

Clozapine & Smoking

Moderate

Clozapine & Tobacco Smoking

Moderate

Codeine & Fluoxetine

Moderate

Codeine & Paroxetine

Moderate

Colchicine & Cyclosporine

Moderate

Colchicine & Diltiazem

Moderate

Colchicine & Erythromycin

Moderate

Colchicine & Verapamil

Moderate

Colestyramine & Digoxin

Moderate

Combined Oral Contraceptives & Lamotrigine

Moderate

Contrast Media & Metformin

Moderate

Cyclophosphamide & Filgrastim

Moderate

Cyclophosphamide & Fluconazole

Moderate

Cyclophosphamide & Ondansetron

Moderate

Cyclophosphamide & Warfarin

Moderate

Cyclosporine & Diltiazem

Moderate

Cyclosporine & Erythromycin

Moderate

Cyclosporine & Fluconazole

Moderate

Cyclosporine & Grapefruit Juice

Moderate

Cyclosporine & Rifampicin

Moderate

Cyclosporine & Rosuvastatin

Moderate

Cyclosporine & Simvastatin

Moderate

Cyclosporine & St Johns Wort

Moderate

Cyclosporine & Statins

Moderate

Cyclosporine & Verapamil

Moderate

Cyclosporine & Voriconazole

Moderate

Dabigatran & Dronedarone

Moderate

Dabigatran & Ketoconazole

Moderate

Dabigatran & Verapamil

Moderate

Dapagliflozin & Furosemide

Moderate

Dexamethasone & Ibrutinib

Moderate

Dexamethasone & Indinavir

Moderate

Dexamethasone & Nivolumab

Moderate

Dexamethasone & Paxlovid

Moderate

Dexamethasone & Pembrolizumab

Moderate

Dexamethasone & Phenytoin

Moderate

Dexamethasone & Rifampicin

Moderate

Dexamethasone & Rivaroxaban

Moderate

Dexamethasone & Warfarin

Moderate

Diazepam & Morphine

Moderate

Diazepam & Oxycodone

Moderate

Diazepam & Zolpidem

Moderate

Diclofenac & Lithium

Moderate

Diclofenac & Methotrexate

Moderate

Diclofenac & Ramipril

Moderate

Digoxin & Amiodarone

Moderate

Digoxin & Dronedarone

Moderate

Digoxin & Erythromycin

Moderate

Digoxin & Furosemide

Moderate

Digoxin & Itraconazole

Moderate

Digoxin & Macrogol

Moderate

Digoxin & Omeprazole

Moderate

Digoxin & Quinidine

Moderate

Digoxin & Spironolactone

Moderate

Digoxin & Thiazide Diuretic

Moderate

Digoxin & Verapamil

Moderate

Diltiazem & Everolimus

Moderate

Diltiazem & Ivabradine

Moderate

Diltiazem & Metoprolol

Moderate

Diltiazem & Rivaroxaban

Moderate

Diltiazem & Simvastatin

Moderate

Diltiazem & Tacrolimus

Moderate

Diphenhydramine & Metoprolol

Moderate

Diuretic Thiazide & Lithium

Moderate

Dofetilide & Hydrochlorothiazide

Moderate

Dofetilide & Trimethoprim

Moderate

Dofetilide & Verapamil

Moderate

Dolutegravir & Metformin

Moderate

Domperidone & Erythromycin

Moderate

Domperidone & Fluconazole

Moderate

Domperidone & Ketoconazole

Moderate

Donepezil & Metoprolol

Moderate

Donepezil & Oxybutynin

Moderate

Donepezil & Succinylcholine

Moderate

Doxorubicin & Trastuzumab

Moderate

Doxycycline & Ferrous Sulfate

Moderate

Doxycycline & Iron Salts

Moderate

Doxycycline & Iron Sulfate

Moderate

Doxycycline & Iron

Moderate

Doxycycline & Isotretinoin

Moderate

Doxycycline & Magnesium Hydroxide

Moderate

Doxycycline & Magnesium

Moderate

Doxycycline & Rifampicin

Moderate

Doxycycline & Warfarin

Moderate

Dronedarone & Rivaroxaban

Moderate

Dronedarone & Simvastatin

Moderate

Dulaglutide & Insulin

Moderate

Duloxetine & Linezolid

Moderate

Duloxetine & Tamoxifen

Moderate

Duloxetine & Tramadol

Moderate

Edoxaban & Ketoconazole

Moderate

Edoxaban & Rifampicin

Moderate

Edoxaban & Verapamil

Moderate

Efavirenz & Voriconazole

Moderate

Empagliflozin & Furosemide

Moderate

Enalapril & Ibuprofen

Moderate

Enalapril & Lithium

Moderate

Enalapril & Losartan

Moderate

Enalapril & Potassium Chloride

Moderate

Enalapril & Sacubitril Valsartan

Moderate

Enalapril & Spironolactone

Moderate

Enalapril & Trimethoprim Sulfamethoxazole

Moderate

Enalapril & Trimethoprim

Moderate

Epinephrine & Propofol

Moderate

Epinephrine & Propranolol

Moderate

Eplerenone & Ketoconazole

Moderate

Ergotamine & Erythromycin

Moderate

Erythromycin & Ivabradine

Moderate

Erythromycin & Quetiapine

Moderate

Erythromycin & Rivaroxaban

Moderate

Erythromycin & Sildenafil

Moderate

Erythromycin & Simvastatin

Moderate

Erythromycin & Sotalol

Moderate

Erythromycin & Statin

Moderate

Erythromycin & Statins

Moderate

Erythromycin & Tacrolimus

Moderate

Erythromycin & Theophylline

Moderate

Erythromycin & Warfarin

Moderate

Escitalopram & Fluconazole

Moderate

Escitalopram & Ibuprofen

Moderate

Escitalopram & Linezolid

Moderate

Escitalopram & Omeprazole

Moderate

Escitalopram & Ondansetron

Moderate

Escitalopram & Tramadol

Moderate

Esomeprazole & Methotrexate

Moderate

Ethanol & Metronidazole

Moderate

Ethanol & Zolpidem

Moderate

Ethinyl Estradiol & Rifampicin

Moderate

Ethinylestradiol & Lamotrigine

Moderate

Ethinylestradiol & Rifampicin

Moderate

Ethinylestradiol & Topiramate

Moderate

Ethinylestradiol Levonorgestrel & Lamotrigine

Moderate

Etinylestradiol & Lamotrigine

Moderate

Everolimus & Ketoconazole

Moderate

Everolimus & Rifampicin

Moderate

Everolimus & Verapamil

Moderate

Everolimus & Voriconazole

Moderate

Ezetimibe & Gemfibrozil

Moderate

Febuxostat & Mercaptopurine

Moderate

Fentanyl & Ritonavir

Moderate

Fentanyl & Voriconazole

Moderate

Ferrous Sulfate & Levodopa

Moderate

Ferrous Sulfate & Levothyroxine

Moderate

Fexofenadine & Grapefruit Juice

Moderate

Fluconazole & Gliclazide

Moderate

Fluconazole & Glimepiride

Moderate

Fluconazole & Glipizide

Moderate

Fluconazole & Losartan

Moderate

Fluconazole & Methadone

Moderate

Fluconazole & Phenytoin

Moderate

Fluconazole & Quetiapine

Moderate

Fluconazole & Simvastatin

Moderate

Fluconazole & Sulfonylurea

Moderate

Fluconazole & Sulfonylureas

Moderate

Fluconazole & Tacrolimus

Moderate

Fluconazole & Warfarin

Moderate

Fluoxetine & Linezolid

Moderate

Fluoxetine & Metoprolol

Moderate

Fluoxetine & Phenelzine

Moderate

Fluoxetine & Propranolol

Moderate

Fluoxetine & Risperidone

Moderate

Fluoxetine & Tamoxifen

Moderate

Fluoxetine & Tramadol

Moderate

Fluoxetine & Warfarin

Moderate

Fluticasone & Ritonavir

Moderate

Fluvoxamine & Olanzapine

Moderate

Fluvoxamine & Ramelteon

Moderate

Fluvoxamine & Theophylline

Moderate

Fluvoxamine & Tizanidine

Moderate

Furosemide & Gentamicin

Moderate

Furosemide & Ibuprofen

Moderate

Furosemide & Lithium

Moderate

Furosemide & Ramipril

Moderate

Gabapentin & Morphine

Moderate

Gabapentin & Oxycodone

Moderate

Ganciclovir & Zidovudine

Moderate

Gemfibrozil & Pioglitazone

Moderate

Gemfibrozil & Repaglinide

Moderate

Gemfibrozil & Rosuvastatin

Moderate

Gemfibrozil & Simvastatin

Moderate

Gemfibrozil & Statin

Moderate

Gentamicin & Tacrolimus

Moderate

Gentamicin & Vancomycin

Moderate

Glibenclamide & Sitagliptin

Moderate

Gliclazide & Miconazole

Moderate

Gliclazide & Sulfamethoxazole Trimethoprim

Moderate

Gliclazide & Sulfamethoxazole

Moderate

Gliclazide & Trimethoprim Sulfamethoxazole

Moderate

Gliclazide & Trimethoprim

Moderate

Glimepiride & Sulfamethoxazole Trimethoprim

Moderate

Glyburide & Sulfamethoxazole Trimethoprim

Moderate

Glyceryl Trinitrate & Sildenafil

Moderate

Grapefruit Juice & Nifedipine

Moderate

Grapefruit Juice & Simvastatin

Moderate

Grapefruit Juice & Statins

Moderate

Grapefruit Juice & Tacrolimus

Moderate

Haloperidol & Levodopa

Moderate

Haloperidol & Levofloxacin

Moderate

Haloperidol & Lithium

Moderate

Haloperidol & Methadone

Moderate

Haloperidol & Moxifloxacin

Moderate

Haloperidol & Ondansetron

Moderate

Haloperidol & Sotalol

Moderate

Haloperidol & Ziprasidone

Moderate

Heparin & Ibuprofen

Moderate

Heparin & Ketorolac

Moderate

Heparin & Nitroglycerin

Moderate

Heparin & Warfarin

Moderate

Hydrochlorothiazide & Lisinopril

Moderate

Hydrochlorothiazide & Lithium

Moderate

Hydrochlorothiazide & Metformin

Moderate

Hydrochlorothiazide & Prednisolone

Moderate

Hydrochlorothiazide & Sotalol

Moderate

Hydrochlorothiazide & Topiramate

Moderate

Ibrutinib & Voriconazole

Moderate

Ibuprofen & Aspirin

Moderate

Ibuprofen & Lisinopril

Moderate

Ibuprofen & Low Dose Aspirin

Moderate

Ibuprofen & Methotrexate

Moderate

Ibuprofen & Prednisone

Moderate

Ibuprofen & Ramipril

Moderate

Ibuprofen & Rivaroxaban

Moderate

Ibuprofen & Sertraline

Moderate

Imatinib & Paracetamol

Moderate

Imatinib & Rifampicin

Moderate

Imatinib & Warfarin

Moderate

Indinavir & Rifabutin

Moderate

Indinavir & Rifampicin

Moderate

Indinavir & St Johns Wort

Moderate

Indomethacin & Lisinopril

Moderate

Indomethacin & Lithium

Moderate

Indomethacin & Methotrexate

Moderate

Indomethacin & Ramipril

Moderate

Indomethacin & Triamterene

Moderate

Insulin & Metoprolol

Moderate

Insulin & Pioglitazone

Moderate

Insulin & Prednisolone

Moderate

Insulin & Prednisone

Moderate

Insulin & Propranolol

Moderate

Iodinated Contrast & Metformin

Moderate

Iodinated Contrast Media & Metformin

Moderate

Iopromide & Metformin

Moderate

Ipratropium & Tiotropium

Moderate

Irbesartan & Lithium

Moderate

Irbesartan & Potassium Chloride

Moderate

Irbesartan & Spironolactone

Moderate

Irbesartan & Trimethoprim Sulfamethoxazole

Moderate

Irbesartan & Trimethoprim

Moderate

Irinotecan & Ketoconazole

Moderate

Irinotecan & Rifampicin

Moderate

Irinotecan & St Johns Wort

Moderate

Iron & Levofloxacin

Moderate

Iron & Tetracycline

Moderate

Iron Salts & Levothyroxine

Moderate

Iron Sulfate & Levothyroxine

Moderate

Isoniazid & Paracetamol

Moderate

Isoniazid & Phenytoin

Moderate

Isoniazid & Rifampicin

Moderate

Isosorbide Mononitrate & Sildenafil

Moderate

Isotretinoin & Tetracycline

Moderate

Itraconazole & Ivabradine

Moderate

Itraconazole & Methadone

Moderate

Itraconazole & Midazolam

Moderate

Itraconazole & Quetiapine

Moderate

Itraconazole & Rivaroxaban

Moderate

Itraconazole & Simvastatin

Moderate

Itraconazole & Tacrolimus

Moderate

Itraconazole & Vincristine

Moderate

Ivabradine & Verapamil

Moderate

Ketoconazole & Lurasidone

Moderate

Ketoconazole & Midazolam

Moderate

Ketoconazole & Pimozide

Moderate

Ketoconazole & Quetiapine

Moderate

Ketoconazole & Quinidine

Moderate

Ketoconazole & Rivaroxaban

Moderate

Ketoconazole & Salmeterol

Moderate

Ketoconazole & Simvastatin

Moderate

Ketoconazole & Tacrolimus

Moderate

Ketoconazole & Tamsulosin

Moderate

Ketoconazole & Tolvaptan

Moderate

Ketoconazole & Warfarin

Moderate

Ketorolac & Lithium

Moderate

Ketorolac & Warfarin

Moderate

Lamotrigine & Sodium Valproate

Moderate

Lamotrigine & Valproate

Moderate

Lamotrigine & Valproic Acid

Moderate

Lansoprazole & Methotrexate

Moderate

Lansoprazole & Rilpivirine

Moderate

Ledipasvir & Rosuvastatin

Moderate

Leflunomide & Methotrexate

Moderate

Levetiracetam & Methotrexate

Moderate

Levodopa & Metoclopramide

Moderate

Levodopa & Pyridoxine

Moderate

Levodopa Carbidopa & Metoclopramide

Moderate

Levofloxacin & Prednisolone

Moderate

Levofloxacin & Prednisone

Moderate

Levofloxacin & Theophylline

Moderate

Levofloxacin & Warfarin

Moderate

Levothyroxine & Calcium

Moderate

Levothyroxine & Iron

Moderate

Levothyroxine & Macrogol

Moderate

Levothyroxine & Omeprazole

Moderate

Levothyroxine & Orlistat

Moderate

Levothyroxine & Pantoprazole

Moderate

Levothyroxine & Proton Pump Inhibitor

Moderate

Levothyroxine & Rifampicin

Moderate

Levothyroxine & Sertraline

Moderate

Levothyroxine & Sevelamer

Moderate

Levothyroxine & Sucralfate

Moderate

Levothyroxine & Warfarin

Moderate

Linagliptin & Rifampicin

Moderate

Linezolid & Mirtazapine

Moderate

Linezolid & Phenelzine

Moderate

Linezolid & Pseudoephedrine

Moderate

Linezolid & Serotonergic Agent

Moderate

Linezolid & Sertraline

Moderate

Linezolid & Tramadol

Moderate

Linezolid & Trazodone

Moderate

Linezolid & Tyramine Rich Foods

Moderate

Linezolid & Tyramine

Moderate

Linezolid & Venlafaxine

Moderate

Lisinopril & Lithium

Moderate

Lisinopril & Losartan

Moderate

Lisinopril & Naproxen

Moderate

Lisinopril & Potassium Chloride

Moderate

Lisinopril & Sacubitril Valsartan

Moderate

Lisinopril & Sacubitril

Moderate

Lisinopril & Spironolactone

Moderate

Lisinopril & Trimethoprim

Moderate

Lithium & Ibuprofen

Moderate

Lithium & Losartan

Moderate

Lithium & Macrogol

Moderate

Lithium & Naproxen

Moderate

Lithium & Nsaid

Moderate

Lithium & Perindopril

Moderate

Lithium & Ramipril

Moderate

Lithium & Sertraline

Moderate

Lithium & Spironolactone

Moderate

Lithium & Thiazide Diuretic

Moderate

Lithium & Thiazide Diuretics

Moderate

Lithium & Thiazide

Moderate

Lithium & Thiazides

Moderate

Lithium & Valsartan

Moderate

Loperamide & Quinidine

Moderate

Lopinavir & Rosuvastatin

Moderate

Lopinavir & Simvastatin

Moderate

Lopinavir Ritonavir & Rifampicin

Moderate

Lopinavir Ritonavir & Rivaroxaban

Moderate

Lorazepam & Morphine

Moderate

Losartan & Naproxen

Moderate

Losartan & Potassium Chloride

Moderate

Losartan & Rifampicin

Moderate

Losartan & Spironolactone

Moderate

Losartan & Trimethoprim

Moderate

Macitentan & Rifampicin

Moderate

Macrogol & Mycophenolate

Moderate

Macrogol & Phenytoin

Moderate

Macrogol & Tacrolimus

Moderate

Macrolide & Statin

Moderate

Macrolide & Tacrolimus

Moderate

Magnesium Trisilicate & Nitrofurantoin

Moderate

Mao Inhibitor & Tyramine Rich Foods

Moderate

Maois & Pethidine

Moderate

Meperidine & Phenelzine

Moderate

Mercaptopurine & Mesalazine

Moderate

Mercaptopurine & Olsalazine

Moderate

Mercaptopurine & Trimethoprim

Moderate

Mercaptopurine & Xanthine Oxidase Inhibitors

Moderate

Meropenem & Sodium Valproate

Moderate

Meropenem & Valproate

Moderate

Meropenem & Valproic Acid

Moderate

Metformin & Alcohol

Moderate

Metformin & Contrast Dye

Moderate

Metformin & Iv Contrast

Moderate

Metformin & Prednisolone

Moderate

Metformin & Prednisone

Moderate

Metformin & Propranolol

Moderate

Metformin & Ranitidine

Moderate

Metformin & Ranolazine

Moderate

Metformin & Rifampicin

Moderate

Metformin & Ritonavir

Moderate

Metformin & Sitagliptin

Moderate

Metformin & Spironolactone

Moderate

Metformin & Ssr Iodinated Contrast

Moderate

Metformin & Sulfamethoxazole Trimethoprim

Moderate

Metformin & Topiramate

Moderate

Metformin & Trimethoprim Sulfamethoxazole

Moderate

Metformin & Trimethoprim

Moderate

Metformin & Vancomycin

Moderate

Metformin & Verapamil

Moderate

Methadone & Ondansetron

Moderate

Methadone & Rifampicin

Moderate

Methadone & Voriconazole

Moderate

Methotrexate & Naproxen

Moderate

Methotrexate & Omeprazole

Moderate

Methotrexate & Pantoprazole

Moderate

Methotrexate & Penicillin V

Moderate

Methotrexate & Penicillin

Moderate

Methotrexate & Probenecid

Moderate

Methotrexate & Proton Pump Inhibitor

Moderate

Methotrexate & Sulfamethoxazole Trimethoprim

Moderate

Methotrexate & Trimethoprim Sulfamethoxazole

Moderate

Methotrexate & Trimethoprim

Moderate

Methylene Blue & Sertraline

Moderate

Methylphenidate & Warfarin

Moderate

Metoclopramide & Morphine

Moderate

Metoclopramide & Olanzapine

Moderate

Metoclopramide & Ondansetron

Moderate

Metoclopramide & Paroxetine

Moderate

Metoclopramide & Prochlorperazine

Moderate

Metoclopramide & Promethazine

Moderate

Metoclopramide & Quetiapine

Moderate

Metoclopramide & Risperidone

Moderate

Metoclopramide & Sertraline

Moderate

Metoclopramide & Tacrolimus

Moderate

Metoclopramide & Tetrabenazine

Moderate

Metoprolol & Mirabegron

Moderate

Metoprolol & Paroxetine

Moderate

Metoprolol & Verapamil

Moderate

Metronidazole & Phenytoin

Moderate

Metronidazole & Tinidazole

Moderate

Metronidazole & Warfarin

Moderate

Miconazole & Warfarin

Moderate

Miconazole Oral Gel & Warfarin

Moderate

Midazolam & Posaconazole

Moderate

Midazolam & Ritonavir

Moderate

Midazolam & Voriconazole

Moderate

Mineral Oil & Warfarin

Moderate

Mirtazapine & Tramadol

Moderate

Moclobemide & Pethidine

Moderate

Moclobemide & Pseudoephedrine

Moderate

Moclobemide & Selegiline

Moderate

Moclobemide & Sertraline

Moderate

Moclobemide & Sumatriptan

Moderate

Moclobemide & Tramadol

Moderate

Moclobemide & Venlafaxine

Moderate

Morphine & Nalbuphine

Moderate

Morphine & Naloxone

Moderate

Morphine & Naltrexone

Moderate

Morphine & Oxazepam

Moderate

Morphine & Pregabalin

Moderate

Morphine & Propranolol

Moderate

Morphine & Quetiapine

Moderate

Morphine & Rifampicin

Moderate

Morphine & Zolpidem

Moderate

Morphine & Zopiclone

Moderate

Moxifloxacin & Ondansetron

Moderate

Mycophenolate & Oral Contraceptives

Moderate

Mycophenolate & Proton Pump Inhibitor

Moderate

Mycophenolate & Rifampicin

Moderate

Mycophenolate & Tacrolimus

Moderate

Mycophenolate Mofetil & Pantoprazole

Moderate

Mycophenolate Mofetil & Rifampicin

Moderate

Mycophenolate Mofetil & Sevelamer

Moderate

Naltrexone & Oxycodone

Moderate

Naproxen & Prednisolone

Moderate

Naproxen & Ramipril

Moderate

Naproxen & Rivaroxaban

Moderate

Naproxen & Sertraline

Moderate

Naproxen & Warfarin

Moderate

Natalizumab & Ocrelizumab

Moderate

Nelfinavir & Rifampicin

Moderate

Neostigmine & Succinylcholine

Moderate

Nifedipine & Phenytoin

Moderate

Nifedipine & Rifampicin

Moderate

Nifedipine & Simvastatin

Moderate

Nifedipine & Tacrolimus

Moderate

Nilotinib & Pantoprazole

Moderate

Nirmatrelvir Ritonavir & Rivaroxaban

Moderate

Nirmatrelvir Ritonavir & Rosuvastatin

Moderate

Nitrate & Sildenafil

Moderate

Nitrate & Tadalafil

Moderate

Nitrates & Riociguat

Moderate

Nitrates & Sildenafil

Moderate

Nitrates & Tadalafil

Moderate

Nitrendipine & Rifampicin

Moderate

Nitrofurantoin & Norfloxacin

Moderate

Nitrofurantoin & Probenecid

Moderate

Nitrofurantoin & Sodium Bicarbonate

Moderate

Nitroglycerin & Sildenafil

Moderate

Nitroglycerin & Tadalafil

Moderate

Nortriptyline & Terbinafine

Moderate

Nsaid & Ramipril

Moderate

Nsaid & Tacrolimus

Moderate

Nsaid & Warfarin

Moderate

Nsaids & Ramipril

Moderate

Nsaids & Sertraline

Moderate

Nsaids & Spironolactone

Moderate

Nsaids & Warfarin

Moderate

Olanzapine & Rifampicin

Moderate

Olanzapine & Smoking Cessation

Moderate

Olanzapine & Smoking Tobacco

Moderate

Olanzapine & Smoking

Moderate

Olanzapine & Tobacco Smoking

Moderate

Olanzapine & Valproate

Moderate

Omeprazole & Phenytoin

Moderate

Omeprazole & Posaconazole

Moderate

Omeprazole & Rilpivirine

Moderate

Omeprazole & Tacrolimus

Moderate

Omeprazole & Voriconazole

Moderate

Omeprazole & Warfarin

Moderate

Ondansetron & Quetiapine

Moderate

Ondansetron & Rifampicin

Moderate

Ondansetron & Sertraline

Moderate

Ondansetron & Sotalol

Moderate

Ondansetron & Tramadol

Moderate

Ondansetron & Trazodone

Moderate

Oral Contraceptive & Rifampicin

Moderate

Oral Contraceptives & Rifampicin

Moderate

Orlistat & Warfarin

Moderate

Oxycodone & Paroxetine

Moderate

Oxycodone & Pregabalin

Moderate

Paclitaxel & Trastuzumab

Moderate

Paracetamol & Alcohol

Moderate

Paracetamol & Warfarin

Moderate

Paroxetine & Risperidone

Moderate

Paroxetine & Tamoxifen

Moderate

Paroxetine & Tamsulosin

Moderate

Paroxetine & Tramadol

Moderate

Paroxetine & Warfarin

Moderate

Paxlovid & Simvastatin

Moderate

Pembrolizumab & Prednisolone

Moderate

Penicillamine & Zinc

Moderate

Penicillin & Probenecid

Moderate

Penicillin V & Probenecid

Moderate

Phenelzine & Pseudoephedrine

Moderate

Phenelzine & Sertraline

Moderate

Phenelzine & Tramadol

Moderate

Phenelzine & Tyramine

Moderate

Phenobarbital & Prednisolone

Moderate

Phenobarbital & Quetiapine

Moderate

Phenobarbital & Valproate

Moderate

Phenobarbital & Valproic Acid

Moderate

Phenobarbital & Voriconazole

Moderate

Phenobarbital & Warfarin

Moderate

Phenytoin & Quetiapine

Moderate

Phenytoin & Rifampicin

Moderate

Phenytoin & Rivaroxaban

Moderate

Phenytoin & Sulfamethoxazole Trimethoprim

Moderate

Phenytoin & Sulfamethoxazole

Moderate

Phenytoin & Theophylline

Moderate

Phenytoin & Trimethoprim Sulfamethoxazole

Moderate

Phenytoin & Trimethoprim

Moderate

Phenytoin & Tube Feeding

Moderate

Phenytoin & Ulipristal

Moderate

Phenytoin & Valproate

Moderate

Phenytoin & Valproic Acid

Moderate

Phenytoin & Voriconazole

Moderate

Phenytoin & Warfarin

Moderate

Pimozide & Ritonavir

Moderate

Pimozide & Sertraline

Moderate

Pimozide & Voriconazole

Moderate

Pioglitazone & Rifampicin

Moderate

Piperacillin Tazobactam & Vancomycin

Moderate

Posaconazole & Sirolimus

Moderate

Posaconazole & Tacrolimus

Moderate

Posaconazole & Venetoclax

Moderate

Posaconazole & Vincristine

Moderate

Potassium Chloride & Ramipril

Moderate

Potassium Chloride & Spironolactone

Moderate

Prednisolone & Quinolones

Moderate

Prednisolone & Rifampicin

Moderate

Prednisolone & Ritonavir

Moderate

Prednisolone & Warfarin

Moderate

Prednisone & Quetiapine

Moderate

Prednisone & Rifampicin

Moderate

Prednisone & Ritonavir

Moderate

Prednisone & Warfarin

Moderate

Pregabalin & Tapentadol

Moderate

Pregabalin & Tramadol

Moderate

Primidone & Valproate

Moderate

Primidone & Valproic Acid

Moderate

Probenecid & Tenofovir Disoproxil

Moderate

Probenecid & Valaciclovir

Moderate

Probenecid & Zidovudine

Moderate

Propafenone & Warfarin

Moderate

Propofol & Remifentanil

Moderate

Propranolol & Rizatriptan

Moderate

Propranolol & Salbutamol

Moderate

Propranolol & Verapamil

Moderate

Pseudoephedrine & Tranylcypromine

Moderate

Quetiapine & Rifampicin

Moderate

Quetiapine & Ritonavir

Moderate

Quinapril & Spironolactone

Moderate

Quinapril & Tetracycline

Moderate

Quinidine & Risperidone

Moderate

Quinidine & Sotalol

Moderate

Quinidine & Tamsulosin

Moderate

Quinidine & Tramadol

Moderate

Quinidine & Verapamil

Moderate

Quinine & Warfarin

Moderate

Quinolone & Sucralfate

Moderate

Quinolone & Sulfonylurea

Moderate

Quinolone & Warfarin

Moderate

Quinolones & Sucralfate

Moderate

Quinolones & Tizanidine

Moderate

Raltegravir & Rifampicin

Moderate

Ramipril & Sacubitril Valsartan

Moderate

Ramipril & Spironolactone

Moderate

Ramipril & Trimethoprim Sulfamethoxazole

Moderate

Ramipril & Trimethoprim

Moderate

Ranolazine & Simvastatin

Moderate

Ranolazine & Verapamil

Moderate

Rasagiline & Sertraline

Moderate

Rasagiline & Tramadol

Moderate

Rasagiline & Venlafaxine

Moderate

Repaglinide & Trimethoprim

Moderate

Ribavirin & Zidovudine

Moderate

Ribociclib & Simvastatin

Moderate

Ribociclib & Tamoxifen

Moderate

Rifampicin & Rivaroxaban

Moderate

Rifampicin & Sertraline

Moderate

Rifampicin & Tacrolimus

Moderate

Rifampicin & Tamoxifen

Moderate

Rifampicin & Voriconazole

Moderate

Rifampicin & Warfarin

Moderate

Rifampicin & Zolpidem

Moderate

Risperidone & Valproic Acid

Moderate

Ritonavir & Rivaroxaban

Moderate

Ritonavir & Salmeterol

Moderate

Ritonavir & Sildenafil

Moderate

Ritonavir & Simvastatin

Moderate

Ritonavir & Tadalafil

Moderate

Ritonavir & Tamsulosin

Moderate

Ritonavir & Triazolam

Moderate

Rivaroxaban & St Johns Wort

Moderate

Rivaroxaban & Verapamil

Moderate

Rosuvastatin & Warfarin

Moderate

Sacubitril & Valsartan

Moderate

Sacubitril Valsartan & Sildenafil

Moderate

Sacubitril Valsartan & Simvastatin

Moderate

Sacubitril Valsartan & Sodium Aurothiomalate

Moderate

Sacubitril Valsartan & Spironolactone

Moderate

Sacubitril Valsartan & Trandolapril

Moderate

Salbutamol & Spironolactone

Moderate

Salbutamol & Theophylline

Moderate

Salbutamol & Timolol

Moderate

Salmeterol & Voriconazole

Moderate

Selegiline & Sertraline

Moderate

Selegiline & Sumatriptan

Moderate

Selegiline & Tramadol

Moderate

Selegiline & Tyramine Containing Foods

Moderate

Selegiline & Venlafaxine

Moderate

Sertraline & St Johns Wort

Moderate

Sertraline & Sumatriptan

Moderate

Sertraline & Tramadol

Moderate

Sertraline & Warfarin

Moderate

Sevelamer & Tacrolimus

Moderate

Sevoflurane & Succinylcholine

Moderate

Sevoflurane & Verapamil

Moderate

Sildenafil & Simvastatin

Moderate

Sildenafil & Sodium Nitroprusside

Moderate

Sildenafil & Tadalafil

Moderate

Sildenafil & Tamsulosin

Moderate

Sildenafil & Terazosin

Moderate

Simvastatin & Ticagrelor

Moderate

Simvastatin & Verapamil

Moderate

Simvastatin & Warfarin

Moderate

Sirolimus & Voriconazole

Moderate

Sodium Bicarbonate & Tetracycline

Moderate

Sodium Polystyrene Sulfonate & Sorbitol

Moderate

Sodium Valproate & Topiramate

Moderate

Sodium Valproate & Warfarin

Moderate

Sotalol & Tacrolimus

Moderate

Sotalol & Tamsulosin

Moderate

Sotalol & Terfenadine

Moderate

Sotalol & Thiazide Diuretics

Moderate

Sotalol & Thiazide

Moderate

Sotalol & Thioridazine

Moderate

Sotalol & Tizanidine

Moderate

Sotalol & Trazodone

Moderate

Sotalol & Trimethoprim Sulfamethoxazole

Moderate

Sotalol & Trimethoprim

Moderate

Sotalol & Venlafaxine

Moderate

Sotalol & Verapamil

Moderate

Sotalol & Ziprasidone

Moderate

Spironolactone & Tacrolimus

Moderate

Spironolactone & Tolvaptan

Moderate

Spironolactone & Trimethoprim Sulfamethoxazole

Moderate

Spironolactone & Trimethoprim

Moderate

Spironolactone & Valsartan

Moderate

Ssri & Maoi

Moderate

Ssri & Nsaid

Moderate

Ssri & Tamoxifen

Moderate

Ssri & Tamsulosin

Moderate

Ssri & Tramadol

Moderate

Ssri & Triptan

Moderate

Ssri & Warfarin

Moderate

Ssris & Tamoxifen

Moderate

Ssris & Tramadol

Moderate

St John S Wort & Tacrolimus

Moderate

St John S Wort & Warfarin

Moderate

St Johns Wort & Tacrolimus

Moderate

Statin & Fibrate

Moderate

Statin & Grapefruit Juice

Moderate

Statin & Verapamil

Moderate

Statins & Verapamil

Moderate

Sucralfate & Warfarin

Moderate

Sulfamethoxazole & Sulfonylurea

Moderate

Sulfamethoxazole & Warfarin

Moderate

Sulfamethoxazole Trimethoprim & Warfarin

Moderate

Sulfasalazine & Warfarin

Moderate

Sulfonylurea & Warfarin

Moderate

Sulfonylureas & Trimethoprim Sulfamethoxazole

Moderate

Sumatriptan & Venlafaxine

Moderate

Tacrolimus & Trimethoprim Sulfamethoxazole

Moderate

Tacrolimus & Verapamil

Moderate

Tacrolimus & Voriconazole

Moderate

Tadalafil & Tamsulosin

Moderate

Tadalafil & Terazosin

Moderate

Tamoxifen & Terbinafine

Moderate

Tamoxifen & Venlafaxine

Moderate

Tamoxifen & Warfarin

Moderate

Tamsulosin & Vardenafil

Moderate

Tamsulosin & Verapamil

Moderate

Telmisartan & Trimethoprim

Moderate

Theophylline & Thiabendazole

Moderate

Theophylline & Ticlopidine

Moderate

Theophylline & Tobacco Smoking

Moderate

Theophylline & Verapamil

Moderate

Thiazide & Tolterodine

Moderate

Thiazide Diuretic & Tolvaptan

Moderate

Thiopurine & Warfarin

Moderate

Thyroid Hormone & Warfarin

Moderate

Ticagrelor & Verapamil

Moderate

Topiramate & Valproate

Moderate

Topiramate & Valproic Acid

Moderate

Tramadol & Venlafaxine

Moderate

Tramadol & Warfarin

Moderate

Tranylcypromine & Tyramine

Moderate

Tranylcypromine & Venlafaxine

Moderate

Trimethoprim & Valsartan

Moderate

Trimethoprim & Warfarin

Moderate

Trimethoprim Sulfamethoxazole & Warfarin

Moderate

Valproate & Warfarin

Moderate

Valproate & Zonisamide

Moderate

Valproic Acid & Warfarin

Moderate

Valproic Acid & Zidovudine

Moderate

Vancomycin & Vecuronium

Moderate

Venlafaxine & Warfarin

Moderate

Venlafaxine & Zolpidem

Moderate

Verapamil & Warfarin

Moderate

Vincristine & Voriconazole

Moderate

Voriconazole & Warfarin

Moderate

Warfarin & Antibiotic

Moderate

Warfarin & Aspirin

Moderate

Warfarin & Ibuprofen

Moderate

Warfarin & Zafirlukast

Moderate

Warfarin & Zeranol

Moderate

Warfarin & Ziprasidone

Moderate

Zolpidem & Zopiclone

Moderate

About This Guide

Drug interactions can range from clinically insignificant to life-threatening. This guide summarizes the most common and important interactions in everyday clinical practice, sourced from peer-reviewed pharmacology references.

This is educational information, not medical advice. Always consult your prescribing clinician about your specific medications.