Abacavir
The serum concentration of Abacavir can be decreased when it is combined with Ritonavir.
Abiraterone
The serum concentration of Ritonavir can be increased when it is combined with Abiraterone.
Acarbose
The therapeutic efficacy of Acarbose can be decreased when used in combination with Ritonavir.
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Acetaminophen
The metabolism of Acetaminophen can be decreased when combined with Ritonavir.
Acetohexamide
The therapeutic efficacy of Acetohexamide can be decreased when used in combination with Ritonavir.
Acetyl Sulfisoxazole
The metabolism of Ritonavir can be decreased when combined with Acetyl sulfisoxazole.
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Acetylcholine
The metabolism of Acetylcholine can be decreased when combined with Ritonavir.
Acetylcholine Chloride
The metabolism of Acetylcholine can be decreased when combined with Ritonavir.
Afatinib
The serum concentration of Afatinib can be decreased when it is combined with Ritonavir.
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Ajmaline
The metabolism of Ajmaline can be decreased when combined with Ritonavir.
Alfentanil
The serum concentration of Alfentanil can be increased when it is combined with Ritonavir.
Alfuzosin
The serum concentration of Alfuzosin can be increased when it is combined with Ritonavir.
Almotriptan
The metabolism of Almotriptan can be decreased when combined with Ritonavir.
Alogliptin
The metabolism of Alogliptin can be decreased when combined with Ritonavir.
Alprazolam
The serum concentration of Alprazolam can be increased when it is combined with Ritonavir.
Alprenolol
The metabolism of Alprenolol can be decreased when combined with Ritonavir.
AMBROXOL ACEFYLLINATE
The serum concentration of Ambroxol acefyllinate can be decreased when it is combined with Ritonavir.
Ambroxol-Theophylline-7-Acetate
The serum concentration of Ambroxol acefyllinate can be decreased when it is combined with Ritonavir.
Amineptin
The serum concentration of Amineptine can be increased when it is combined with Ritonavir.
Aminophylline
The serum concentration of Aminophylline can be decreased when it is combined with Ritonavir.
Aminopyrine
The metabolism of Aminophenazone can be decreased when combined with Ritonavir.
Amiodarone
The serum concentration of Amiodarone can be increased when it is combined with Ritonavir.
Amitriptyline
The metabolism of Amitriptyline can be decreased when combined with Ritonavir.
Amodiaquine
The serum concentration of Amodiaquine can be increased when it is combined with Ritonavir.
Amoxapine
The metabolism of Amoxapine can be decreased when combined with Ritonavir.
Amphetamine
The metabolism of Amphetamine can be decreased when combined with Ritonavir.
Amprenavir
The metabolism of Amprenavir can be decreased when combined with Ritonavir.
Amsacrine
The metabolism of Amsacrine can be decreased when combined with Ritonavir.
Anagrelide
Ritonavir may increase the QTc-prolonging activities of Anagrelide.
Anhydrous Tacrolimus
The serum concentration of Tacrolimus can be increased when it is combined with Ritonavir.
Antipyrine
The metabolism of Antipyrine can be decreased when combined with Ritonavir.
Apalutamide
The serum concentration of Ritonavir can be decreased when it is combined with Apalutamide.
Aprepitant
The serum concentration of Ritonavir can be increased when it is combined with Aprepitant.
Aprindine
The metabolism of Aprindine can be decreased when combined with Ritonavir.
Arformoterol
The metabolism of Arformoterol can be decreased when combined with Ritonavir.
Aripiprazole
The risk or severity of adverse effects can be increased when Aripiprazole is combined with Ritonavir.
Arsenic Trioxide
Ritonavir may increase the QTc-prolonging activities of Arsenic trioxide.
Artemether
The metabolism of Artemether can be decreased when combined with Ritonavir.
Asenapine
Ritonavir may increase the QTc-prolonging activities of Asenapine.
Astemizole
The metabolism of Astemizole can be decreased when combined with Ritonavir.
Asunaprevir
The serum concentration of Asunaprevir can be decreased when it is combined with Ritonavir.
Atazanavir
The serum concentration of Ritonavir can be increased when it is combined with Atazanavir.
Atomoxetine
The serum concentration of Atomoxetine can be increased when it is combined with Ritonavir.
Atorvastatin
The serum concentration of Atorvastatin can be increased when it is combined with Ritonavir.
Atovaquone
The serum concentration of Atovaquone can be decreased when it is combined with Ritonavir.
Azelastine
The metabolism of Azelastine can be decreased when combined with Ritonavir.
Azithromycin
The metabolism of Ritonavir can be decreased when combined with Azithromycin.
Bedaquiline
Ritonavir may increase the QTc-prolonging activities of Bedaquiline.
Benztropine
The metabolism of Benzatropine can be decreased when combined with Ritonavir.
Benzyl Alcohol
The metabolism of Benzyl alcohol can be decreased when combined with Ritonavir.
Bepridil
The metabolism of Bepridil can be decreased when combined with Ritonavir.
Betaxolol
The metabolism of Betaxolol can be decreased when combined with Ritonavir.
Bisoprolol
The metabolism of Bisoprolol can be decreased when combined with Ritonavir.
Boceprevir
The serum concentration of Boceprevir can be decreased when it is combined with Ritonavir.
Bortezomib
The metabolism of Bortezomib can be decreased when combined with Ritonavir.
Bosentan
The serum concentration of Bosentan can be increased when it is combined with Ritonavir.
Bosentan Anhydrous
The serum concentration of Bosentan can be increased when it is combined with Ritonavir.
Bosutinib
The serum concentration of Bosutinib can be increased when it is combined with Ritonavir.
Bosutinib monohydrate
The serum concentration of Bosutinib can be increased when it is combined with Ritonavir.
Brentuximab Vedotin
The serum concentration of Brentuximab vedotin can be decreased when it is combined with Ritonavir.
Brexpiprazole
The serum concentration of Brexpiprazole can be increased when it is combined with Ritonavir.
Bromocriptine
The risk or severity of adverse effects can be increased when Bromocriptine is combined with Ritonavir.
Brompheniramine
The metabolism of Brompheniramine can be decreased when combined with Ritonavir.
Bupivacaine
The metabolism of Bupivacaine can be decreased when combined with Ritonavir.
Buprenorphine
The serum concentration of Buprenorphine can be increased when it is combined with Ritonavir.
Bupropion
The serum concentration of Bupropion can be decreased when it is combined with Ritonavir.
Buspirone
The metabolism of Buspirone can be decreased when combined with Ritonavir.
Butriptyline
The serum concentration of Butriptyline can be increased when it is combined with Ritonavir.
Cabergoline
The risk or severity of adverse effects can be increased when Cabergoline is combined with Ritonavir.
Caffeine
The metabolism of Caffeine can be decreased when combined with Ritonavir.
Canagliflozin
The serum concentration of Canagliflozin can be decreased when it is combined with Ritonavir.
Canagliflozin Anhydrous
The serum concentration of Canagliflozin can be decreased when it is combined with Ritonavir.
Captopril
The metabolism of Captopril can be decreased when combined with Ritonavir.
Carbamazepine
The metabolism of Ritonavir can be increased when combined with Carbamazepine.
Cariprazine
The metabolism of Cariprazine can be decreased when combined with Ritonavir.
Carteolol
The metabolism of Carteolol can be decreased when combined with Ritonavir.
Carvedilol
The metabolism of Carvedilol can be decreased when combined with Ritonavir.
Celecoxib
The metabolism of Ritonavir can be decreased when combined with Celecoxib.
Cephalexin
The metabolism of Cephalexin can be decreased when combined with Ritonavir.
CEPHALEXIN ANHYDROUS
The metabolism of Cephalexin can be decreased when combined with Ritonavir.
Ceritinib
The serum concentration of Ritonavir can be increased when it is combined with Ceritinib.
Cerivastatin
The serum concentration of Cerivastatin can be increased when it is combined with Ritonavir.
Cevimeline
The metabolism of Cevimeline can be decreased when combined with Ritonavir.
Chlordiazepoxide
The metabolism of Chlordiazepoxide can be decreased when combined with Ritonavir.
Chloroquine
The metabolism of Chloroquine can be decreased when combined with Ritonavir.
Chlorpheniramine
The metabolism of Chlorphenamine can be decreased when combined with Ritonavir.
CHLORPHENIRAMINE POLISTIREX
The metabolism of Chlorphenamine can be decreased when combined with Ritonavir.
Chlorpromazine
The metabolism of Chlorpromazine can be decreased when combined with Ritonavir.
Chlorpropamide
The therapeutic efficacy of Chlorpropamide can be decreased when used in combination with Ritonavir.
Chlorzoxazone
The metabolism of Chlorzoxazone can be decreased when combined with Ritonavir.
Cholecalciferol
The metabolism of Ritonavir can be decreased when combined with Cholecalciferol.
Cilostazol
The serum concentration of Cilostazol can be increased when it is combined with Ritonavir.
Cimetidine
The metabolism of Ritonavir can be decreased when combined with Cimetidine.
Cinacalcet
The metabolism of Ritonavir can be decreased when combined with Cinacalcet.
Cinnarizine
The metabolism of Cinnarizine can be decreased when combined with Ritonavir.
Ciprofloxacin
Ritonavir may increase the QTc-prolonging activities of Ciprofloxacin.
Cisapride
The serum concentration of Cisapride can be increased when it is combined with Ritonavir.
Citalopram
The metabolism of Citalopram can be decreased when combined with Ritonavir.
Clarithromycin
The therapeutic efficacy of Clarithromycin can be decreased when used in combination with Ritonavir.
Clemastine
The metabolism of Ritonavir can be decreased when combined with Clemastine.
Clevidipine
The metabolism of Clevidipine can be decreased when combined with Ritonavir.
Clevidipine butyrate
The metabolism of Clevidipine can be decreased when combined with Ritonavir.
Clobazam
The metabolism of Ritonavir can be decreased when combined with Clobazam.
Clomipramine
The metabolism of Clomipramine can be decreased when combined with Ritonavir.
Clonidine
The metabolism of Clonidine can be decreased when combined with Ritonavir.
Clopidogrel
The metabolism of Ritonavir can be decreased when combined with Clopidogrel.
Clorazepate
The serum concentration of Clorazepate can be increased when it is combined with Ritonavir.
CLORAZEPIC ACID
The serum concentration of Clorazepate can be increased when it is combined with Ritonavir.
Clotrimazole
The metabolism of Ritonavir can be decreased when combined with Clotrimazole.
Clozapine
The metabolism of Clozapine can be decreased when combined with Ritonavir.
Cobicistat
The serum concentration of Ritonavir can be increased when it is combined with Cobicistat.
Cocaine
The metabolism of Ritonavir can be decreased when combined with Cocaine.
Codeine
The therapeutic efficacy of Codeine can be decreased when used in combination with Ritonavir.
Codeine Anhydrous
The therapeutic efficacy of Codeine can be decreased when used in combination with Ritonavir.
CODEINE POLISTIREX
The therapeutic efficacy of Codeine can be decreased when used in combination with Ritonavir.
Colchicine
The serum concentration of Colchicine can be increased when it is combined with Ritonavir.
Conivaptan
The serum concentration of Conivaptan can be increased when it is combined with Ritonavir.
Crizotinib
The metabolism of Ritonavir can be decreased when combined with Crizotinib.
Curcumin
The metabolism of Ritonavir can be decreased when combined with Curcumin.
Cyclobenzaprine
The metabolism of Cyclobenzaprine can be decreased when combined with Ritonavir.
Cyclophosphamide
The risk or severity of adverse effects can be increased when Ritonavir is combined with Cyclophosphamide.
Cyclophosphamide Anhydrous
The risk or severity of adverse effects can be increased when Ritonavir is combined with Cyclophosphamide.
Cyclosporine
The serum concentration of Cyclosporine can be increased when it is combined with Ritonavir.
Cyproterone Acetate
The serum concentration of Ritonavir can be decreased when it is combined with Cyproterone acetate.
Dabigatran Etexilate
The serum concentration of Dabigatran etexilate can be decreased when it is combined with Ritonavir.
Dabrafenib
The serum concentration of Ritonavir can be decreased when it is combined with Dabrafenib.
Dapagliflozin
The metabolism of Dapagliflozin can be decreased when combined with Ritonavir.
Darifenacin
The metabolism of Darifenacin can be decreased when combined with Ritonavir.
Darunavir
The serum concentration of Darunavir can be decreased when it is combined with Ritonavir.
Dasabuvir
The metabolism of Dasabuvir can be decreased when combined with Ritonavir.
Dasatinib
The serum concentration of Ritonavir can be increased when it is combined with Dasatinib.
Dasatinib Anhydrous
The serum concentration of Ritonavir can be increased when it is combined with Dasatinib.
Debrisoquin
The metabolism of Debrisoquin can be decreased when combined with Ritonavir.
Deferasirox
The serum concentration of Deferasirox can be decreased when it is combined with Ritonavir.
Delavirdine
The serum concentration of Delavirdine can be decreased when it is combined with Ritonavir.
Desipramine
The metabolism of Desipramine can be decreased when combined with Ritonavir.
Deutetrabenazine
The serum concentration of the active metabolites of Deutetrabenazine can be increased when Deutetrabenazine is used in combination with Ritonavir.
Dexchlorpheniramine maleate
The metabolism of Dexchlorpheniramine maleate can be decreased when combined with Ritonavir.
Dexfenfluramine
The metabolism of Dexfenfluramine can be decreased when combined with Ritonavir.
Dexmethylphenidate
The metabolism of Dexmethylphenidate can be decreased when combined with Ritonavir.
Dextroamphetamine
The metabolism of Dextroamphetamine can be decreased when combined with Ritonavir.
Dextromethorphan
The metabolism of Dextromethorphan can be decreased when combined with Ritonavir.
Diazepam
The serum concentration of Diazepam can be increased when it is combined with Ritonavir.
Diethylstilbestrol
The serum concentration of Diethylstilbestrol can be decreased when it is combined with Ritonavir.
Digoxin
The serum concentration of Digoxin can be increased when it is combined with Ritonavir.
Dihydrocodeine
The metabolism of Dihydrocodeine can be decreased when combined with Ritonavir.
Dihydroergocornine
The risk or severity of adverse effects can be increased when Dihydroergocornine is combined with Ritonavir.
Dihydroergocristine
The risk or severity of adverse effects can be increased when Dihydroergocristine is combined with Ritonavir.
Dihydroergotamine
The risk or severity of adverse effects can be increased when Dihydroergotamine is combined with Ritonavir.
Diltiazem
The metabolism of Diltiazem can be decreased when combined with Ritonavir.
Diphenhydramine
The metabolism of Diphenhydramine can be decreased when combined with Ritonavir.
Disopyramide
Ritonavir may increase the QTc-prolonging activities of Disopyramide.
Disulfiram
The risk or severity of adverse effects can be increased when Ritonavir is combined with Disulfiram.
Dofetilide
Ritonavir may increase the QTc-prolonging activities of Dofetilide.
Dolasetron
The metabolism of Dolasetron can be decreased when combined with Ritonavir.
Domperidone
The metabolism of Domperidone can be decreased when combined with Ritonavir.
Donepezil
The metabolism of Donepezil can be decreased when combined with Ritonavir.
Dopamine
The metabolism of Dopamine can be decreased when combined with Ritonavir.
Dothiepin
The metabolism of Ritonavir can be decreased when combined with Dosulepin.
Doxazosin
The metabolism of Doxazosin can be decreased when combined with Ritonavir.
Doxepin
The metabolism of Doxepin can be decreased when combined with Ritonavir.
Doxorubicin
The serum concentration of Doxorubicin can be increased when it is combined with Ritonavir.
Doxorubicin Hydrochloride
The serum concentration of Doxorubicin can be increased when it is combined with Ritonavir.
Doxycycline
The metabolism of Ritonavir can be decreased when combined with Doxycycline.
Doxycycline Anhydrous
The metabolism of Ritonavir can be decreased when combined with Doxycycline.
Dronedarone
The metabolism of Dronedarone can be decreased when combined with Ritonavir.
Droperidol
Ritonavir may increase the QTc-prolonging activities of Droperidol.
Dulaglutide
The therapeutic efficacy of Dulaglutide can be decreased when used in combination with Ritonavir.
Duloxetine
The serum concentration of Duloxetine can be increased when it is combined with Ritonavir.
Dyphylline
The serum concentration of Dyphylline can be decreased when it is combined with Ritonavir.
Edoxaban
The serum concentration of Edoxaban can be increased when it is combined with Ritonavir.
Efavirenz
The risk or severity of adverse effects can be increased when Efavirenz is combined with Ritonavir.
Eletriptan
The metabolism of Eletriptan can be decreased when combined with Ritonavir.
Eliglustat
The serum concentration of Eliglustat can be increased when it is combined with Ritonavir.
Eluxadoline
The serum concentration of Eluxadoline can be increased when it is combined with Ritonavir.
Empagliflozin
The therapeutic efficacy of Empagliflozin can be decreased when used in combination with Ritonavir.
Enasidenib
The metabolism of Enasidenib can be decreased when combined with Ritonavir.
Encainide
The metabolism of Encainide can be decreased when combined with Ritonavir.
Enfuvirtide
The serum concentration of Enfuvirtide can be increased when it is combined with Ritonavir.
Enzalutamide
The serum concentration of Ritonavir can be decreased when it is combined with Enzalutamide.
Epinastine
The metabolism of Epinastine can be decreased when combined with Ritonavir.
ergoloid mesylates, USP
The serum concentration of Ergoloid mesylate can be increased when it is combined with Ritonavir.
Ergonovine
The risk or severity of adverse effects can be increased when Ergonovine is combined with Ritonavir.
Ergotamine
The risk or severity of adverse effects can be increased when Ergotamine is combined with Ritonavir.
Erlotinib
The metabolism of Erlotinib can be decreased when combined with Ritonavir.
Erythromycin
The metabolism of Ritonavir can be decreased when combined with Erythromycin.
Escitalopram
The metabolism of Escitalopram can be decreased when combined with Ritonavir.
Estazolam
The serum concentration of Estazolam can be increased when it is combined with Ritonavir.
Estradiol
The serum concentration of Estradiol can be decreased when it is combined with Ritonavir.
Estradiol Cypionate
The serum concentration of Estradiol cypionate can be decreased when it is combined with Ritonavir.
Estradiol Valerate
The serum concentration of Estradiol valerate can be decreased when it is combined with Ritonavir.
Ethinyl Estradiol
The serum concentration of Ethinyl Estradiol can be decreased when it is combined with Ritonavir.
Ethylmorphine
The metabolism of Ethylmorphine can be decreased when combined with Ritonavir.
Etoricoxib
The metabolism of Etoricoxib can be decreased when combined with Ritonavir.
Etravirine
The serum concentration of Etravirine can be decreased when it is combined with Ritonavir.
Everolimus
The serum concentration of Everolimus can be increased when it is combined with Ritonavir.
Exenatide
The therapeutic efficacy of Exenatide can be decreased when used in combination with Ritonavir.
Fentanyl
The serum concentration of Fentanyl can be increased when it is combined with Ritonavir.
Fesoterodine
The serum concentration of the active metabolites of Fesoterodine can be increased when Fesoterodine is used in combination with Ritonavir.
Fingolimod
The metabolism of Fingolimod can be decreased when combined with Ritonavir.
Flecainide
The serum concentration of Flecainide can be increased when it is combined with Ritonavir.
Fluconazole
The metabolism of Ritonavir can be decreased when combined with Fluconazole.
Flunarizine
The metabolism of Flunarizine can be decreased when combined with Ritonavir.
Fluoxetine
The metabolism of Fluoxetine can be decreased when combined with Ritonavir.
Flupenthixol
Ritonavir may increase the QTc-prolonging activities of Flupentixol.
Fluphenazine
The metabolism of Fluphenazine can be decreased when combined with Ritonavir.
Flurazepam
The serum concentration of Flurazepam can be increased when it is combined with Ritonavir.
Fluticasone propionate
The serum concentration of Fluticasone propionate can be increased when it is combined with Ritonavir.
Fluvastatin
The serum concentration of Fluvastatin can be increased when it is combined with Ritonavir.
Fluvoxamine
The metabolism of Ritonavir can be decreased when combined with Fluvoxamine.
Formoterol
The metabolism of Formoterol can be decreased when combined with Ritonavir.
Fosamprenavir
The metabolism of Ritonavir can be decreased when combined with Fosamprenavir.
Fosaprepitant
The serum concentration of Ritonavir can be increased when it is combined with Fosaprepitant.
Fosphenytoin
The serum concentration of Ritonavir can be decreased when it is combined with Fosphenytoin.
Fusidate
The serum concentration of Fusidic Acid can be increased when it is combined with Ritonavir.
Fusidic Acid
The serum concentration of Fusidic Acid can be increased when it is combined with Ritonavir.
Gadobenate
Ritonavir may increase the QTc-prolonging activities of Gadobenic acid.
Galantamine
The metabolism of Galantamine can be decreased when combined with Ritonavir.
Garlic Allergenic Extract
The serum concentration of Ritonavir can be decreased when it is combined with Garlic.
Gefitinib
The metabolism of Gefitinib can be decreased when combined with Ritonavir.
Gemifloxacin
Ritonavir may increase the QTc-prolonging activities of Gemifloxacin.
Gemifloxacin Mesylate
Ritonavir may increase the QTc-prolonging activities of Gemifloxacin.
Glibornuride
The therapeutic efficacy of Glibornuride can be decreased when used in combination with Ritonavir.
Gliclazide
The therapeutic efficacy of Gliclazide can be decreased when used in combination with Ritonavir.
Glimepiride
The therapeutic efficacy of Glimepiride can be decreased when used in combination with Ritonavir.
Glipizide
The therapeutic efficacy of Glipizide can be decreased when used in combination with Ritonavir.
Gliquidone
The therapeutic efficacy of Gliquidone can be decreased when used in combination with Ritonavir.
Glyburide
The therapeutic efficacy of Glyburide can be decreased when used in combination with Ritonavir.
Goserelin
Ritonavir may increase the QTc-prolonging activities of Goserelin.
Granisetron
The metabolism of Granisetron can be decreased when combined with Ritonavir.
Halofantrine
The metabolism of Halofantrine can be decreased when combined with Ritonavir.
Haloperidol
The metabolism of Haloperidol can be decreased when combined with Ritonavir.
Halothane
The metabolism of Halothane can be decreased when combined with Ritonavir.
Hydrocodone
The serum concentration of the active metabolites of Hydrocodone can be reduced when Hydrocodone is used in combination with Ritonavir resulting in a loss in efficacy.
HYDROCODONE POLISTIREX
The serum concentration of the active metabolites of Hydrocodone can be reduced when Hydrocodone is used in combination with Ritonavir resulting in a loss in efficacy.
Hydromorphone
The metabolism of Hydromorphone can be decreased when combined with Ritonavir.
Hypoxis hemerocallidea root extract
The metabolism of Ritonavir can be increased when combined with St. John's Wort.
Ibrutinib
The serum concentration of Ibrutinib can be increased when it is combined with Ritonavir.
Ibutilide
Ritonavir may increase the QTc-prolonging activities of Ibutilide.
Idarubicin
The metabolism of Idarubicin can be decreased when combined with Ritonavir.
Idelalisib
The metabolism of Ritonavir can be decreased when combined with Idelalisib.
Iloperidone
The serum concentration of the active metabolites of Iloperidone can be increased when Iloperidone is used in combination with Ritonavir.
Imatinib
The metabolism of Imatinib can be decreased when combined with Ritonavir.
Imipramine
The metabolism of Imipramine can be decreased when combined with Ritonavir.
Indinavir
The metabolism of Ritonavir can be decreased when combined with Indinavir.
INDINAVIR ANHYDROUS
The metabolism of Ritonavir can be decreased when combined with Indinavir.
Insulin Detemir
The therapeutic efficacy of Insulin Detemir can be decreased when used in combination with Ritonavir.
Insulin Glargine
The therapeutic efficacy of Insulin Glargine can be decreased when used in combination with Ritonavir.
insulin human, rDNA origin
The therapeutic efficacy of Insulin Human can be decreased when used in combination with Ritonavir.
Insulin Lispro
The therapeutic efficacy of Insulin Lispro can be decreased when used in combination with Ritonavir.
Insulin, Aspart Protamine, Human
The therapeutic efficacy of Insulin Aspart can be decreased when used in combination with Ritonavir.
Insulin, Aspart, Human
The therapeutic efficacy of Insulin Aspart can be decreased when used in combination with Ritonavir.
Insulin, Glulisine, Human
The therapeutic efficacy of Insulin Glulisine can be decreased when used in combination with Ritonavir.
Insulin, Pork
The therapeutic efficacy of Insulin Pork can be decreased when used in combination with Ritonavir.
Insulin, Protamine Lispro, Human
The therapeutic efficacy of Insulin Lispro can be decreased when used in combination with Ritonavir.
Insulin, Regular, Pork
The therapeutic efficacy of Insulin Pork can be decreased when used in combination with Ritonavir.
Ipecac
The metabolism of Ipecac can be decreased when combined with Ritonavir.
Ipratropium
The metabolism of Ipratropium bromide can be decreased when combined with Ritonavir.
Ipratropium cation
The metabolism of Ipratropium bromide can be decreased when combined with Ritonavir.
Isavuconazole
The serum concentration of Isavuconazole can be increased when it is combined with Ritonavir.
Isavuconazonium
The metabolism of Ritonavir can be decreased when combined with Isavuconazonium.
Isoniazid
The metabolism of Ritonavir can be decreased when combined with Isoniazid.
Isradipine
The metabolism of Ritonavir can be decreased when combined with Isradipine.
Itraconazole
The serum concentration of Itraconazole can be increased when it is combined with Ritonavir.
Ivacaftor
The serum concentration of Ritonavir can be increased when it is combined with Ivacaftor.
Ixazomib
The metabolism of Ixazomib can be decreased when combined with Ritonavir.
Ketoconazole
The serum concentration of Ketoconazole can be increased when it is combined with Ritonavir.
Labetalol
The metabolism of Labetalol can be decreased when combined with Ritonavir.
Lamotrigine
The serum concentration of Lamotrigine can be decreased when it is combined with Ritonavir.
Ledipasvir
The serum concentration of Ledipasvir can be decreased when it is combined with Ritonavir.
Lenvatinib
Ritonavir may increase the QTc-prolonging activities of Lenvatinib.
Lenvatinib Mesylate
Ritonavir may increase the QTc-prolonging activities of Lenvatinib.
Letermovir
The metabolism of Letermovir can be decreased when combined with Ritonavir.
Leuprolide
Ritonavir may increase the QTc-prolonging activities of Leuprolide.
Levodopa
The metabolism of Levodopa can be decreased when combined with Ritonavir.
Levofloxacin
Ritonavir may increase the QTc-prolonging activities of Levofloxacin.
Levofloxacin Anhydrous
Ritonavir may increase the QTc-prolonging activities of Levofloxacin.
Levomilnacipran
The metabolism of Levomilnacipran can be decreased when combined with Ritonavir.
Lidocaine
The metabolism of Lidocaine can be decreased when combined with Ritonavir.
Linagliptin
The serum concentration of Linagliptin can be increased when it is combined with Ritonavir.
Liraglutide
The therapeutic efficacy of Liraglutide can be decreased when used in combination with Ritonavir.
Lisuride
The risk or severity of adverse effects can be increased when Lisuride is combined with Ritonavir.
Lofexidine
The metabolism of Lofexidine can be decreased when combined with Ritonavir.
Lomustine
The metabolism of Lomustine can be decreased when combined with Ritonavir.
Loperamide
The metabolism of Loperamide can be decreased when combined with Ritonavir.
Lopinavir
The metabolism of Ritonavir can be decreased when combined with Lopinavir.
Loratadine
The metabolism of Loratadine can be decreased when combined with Ritonavir.
Lorcaserin
The metabolism of Lorcaserin can be decreased when combined with Ritonavir.
Lovastatin
The serum concentration of Lovastatin can be increased when it is combined with Ritonavir.
Luliconazole
The serum concentration of Ritonavir can be increased when it is combined with Luliconazole.
Lumacaftor
The serum concentration of Ritonavir can be decreased when it is combined with Lumacaftor.
Lumefantrine
Ritonavir may increase the QTc-prolonging activities of Lumefantrine.
Manidipine
The metabolism of Ritonavir can be decreased when combined with Manidipine.
Maprotiline
The metabolism of Maprotiline can be decreased when combined with Ritonavir.
MELITRACEN
The serum concentration of Melitracen can be increased when it is combined with Ritonavir.
Meperidine
The risk or severity of adverse effects can be increased when Ritonavir is combined with Pethidine.
Mephenytoin
The metabolism of Mephenytoin can be decreased when combined with Ritonavir.
Mequitazine
The serum concentration of Mequitazine can be increased when it is combined with Ritonavir.
Mesoridazine
The metabolism of Mesoridazine can be decreased when combined with Ritonavir.
Mestranol
The serum concentration of Mestranol can be decreased when it is combined with Ritonavir.
Metergoline
The risk or severity of adverse effects can be increased when Metergoline is combined with Ritonavir.
Metformin
The therapeutic efficacy of Metformin can be decreased when used in combination with Ritonavir.
Methadone
The serum concentration of Methadone can be decreased when it is combined with Ritonavir.
Methamphetamine
The metabolism of Methamphetamine can be decreased when combined with Ritonavir.
Methotrimeprazine
The metabolism of Methotrimeprazine can be decreased when combined with Ritonavir.
Methoxyflurane
The metabolism of Methoxyflurane can be decreased when combined with Ritonavir.
Methylergonovine
The risk or severity of adverse effects can be increased when Methylergometrine is combined with Ritonavir.
Methylphenidate
The metabolism of Methylphenidate can be decreased when combined with Ritonavir.
Methyprylon
The metabolism of Methyprylon can be decreased when combined with Ritonavir.
Methysergide
The risk or severity of adverse effects can be increased when Methysergide is combined with Ritonavir.
Metoclopramide
The metabolism of Metoclopramide can be decreased when combined with Ritonavir.
Metoprolol
The serum concentration of Metoprolol can be increased when it is combined with Ritonavir.
Metronidazole
The risk or severity of adverse effects can be increased when Ritonavir is combined with Metronidazole.
Mexiletine
The metabolism of Ritonavir can be decreased when combined with Mexiletine.
Mianserin
The metabolism of Mianserin can be decreased when combined with Ritonavir.
Midazolam
The serum concentration of Midazolam can be increased when it is combined with Ritonavir.
Midostaurin
The metabolism of Ritonavir can be decreased when combined with Midostaurin.
Mifepristone
The serum concentration of Ritonavir can be increased when it is combined with Mifepristone.
Miglitol
The therapeutic efficacy of Miglitol can be decreased when used in combination with Ritonavir.
Miglustat
The therapeutic efficacy of Miglustat can be decreased when used in combination with Ritonavir.
Minaprine
The metabolism of Minaprine can be decreased when combined with Ritonavir.
Mirabegron
The metabolism of Mirabegron can be decreased when combined with Ritonavir.
Mirtazapine
The metabolism of Mirtazapine can be decreased when combined with Ritonavir.
Mitotane
The serum concentration of Ritonavir can be decreased when it is combined with Mitotane.
Moclobemide
The metabolism of Moclobemide can be decreased when combined with Ritonavir.
Morphine
The metabolism of Morphine can be decreased when combined with Ritonavir.
Moxifloxacin
Ritonavir may increase the QTc-prolonging activities of Moxifloxacin.
Naloxegol
The serum concentration of Naloxegol can be increased when it is combined with Ritonavir.
Nateglinide
The metabolism of Nateglinide can be decreased when combined with Ritonavir.
Nebivolol
The serum concentration of Nebivolol can be increased when it is combined with Ritonavir.
Nefazodone
The serum concentration of Nefazodone can be increased when it is combined with Ritonavir.
Nelfinavir
The metabolism of Ritonavir can be decreased when combined with Nelfinavir.
Netupitant
The serum concentration of Ritonavir can be increased when it is combined with Netupitant.
Nevirapine
The serum concentration of Nevirapine can be increased when it is combined with Ritonavir.
Nicardipine
The metabolism of Nicardipine can be decreased when combined with Ritonavir.
Nicergoline
The risk or severity of adverse effects can be increased when Nicergoline is combined with Ritonavir.
Nicotine
The metabolism of Nicotine can be decreased when combined with Ritonavir.
Nicotine Polacrilex
The metabolism of Nicotine can be decreased when combined with Ritonavir.
Nifedipine
The metabolism of Nifedipine can be decreased when combined with Ritonavir.
Nilotinib
Ritonavir may increase the QTc-prolonging activities of Nilotinib.
Nintedanib
The serum concentration of Nintedanib can be decreased when it is combined with Ritonavir.
Nitrofurazone
The metabolism of Nitrofural can be decreased when combined with Ritonavir.
Nortriptyline
The metabolism of Nortriptyline can be decreased when combined with Ritonavir.
Ofloxacin
Ritonavir may increase the QTc-prolonging activities of Ofloxacin.
Olanzapine
The serum concentration of Olanzapine can be decreased when it is combined with Ritonavir.
Olaparib
The metabolism of Ritonavir can be decreased when combined with Olaparib.
Ondansetron
The metabolism of Ondansetron can be decreased when combined with Ritonavir.
Opipramol
The serum concentration of Opipramol can be increased when it is combined with Ritonavir.
Opium
The metabolism of Opium can be decreased when combined with Ritonavir.
Osimertinib
The serum concentration of Ritonavir can be increased when it is combined with Osimertinib.
Oxycodone
The metabolism of Oxycodone can be decreased when combined with Ritonavir.
Oxymorphone
The metabolism of Oxymorphone can be decreased when combined with Ritonavir.
Palbociclib
The serum concentration of Ritonavir can be increased when it is combined with Palbociclib.
Paliperidone
Ritonavir may increase the QTc-prolonging activities of Paliperidone.
Palonosetron
The metabolism of Palonosetron can be decreased when combined with Ritonavir.
Panobinostat
The serum concentration of Ritonavir can be increased when it is combined with Panobinostat.
Paregoric
The metabolism of Morphine can be decreased when combined with Ritonavir.
Paroxetine
The metabolism of Paroxetine can be decreased when combined with Ritonavir.
Pazopanib
The serum concentration of Pazopanib can be increased when it is combined with Ritonavir.
Peginterferon Alfa-2b
The serum concentration of Ritonavir can be decreased when it is combined with Peginterferon alfa-2b.
Pentamidine
The metabolism of Pentamidine can be decreased when combined with Ritonavir.
Pentobarbital
The serum concentration of Pentobarbital can be increased when it is combined with Ritonavir.
Perflutren
Ritonavir may increase the QTc-prolonging activities of Perflutren.
Pergolide
The risk or severity of adverse effects can be increased when Pergolide is combined with Ritonavir.
Perhexiline
The metabolism of Perhexiline can be decreased when combined with Ritonavir.
Perphenazine
The metabolism of Perphenazine can be decreased when combined with Ritonavir.
Phenacetin
The metabolism of Phenacetin can be decreased when combined with Ritonavir.
Phenformin
The metabolism of Phenformin can be decreased when combined with Ritonavir.
Phenobarbital
The serum concentration of Phenobarbital can be increased when it is combined with Ritonavir.
Phenytoin
The serum concentration of Ritonavir can be decreased when it is combined with Phenytoin.
Pimozide
The serum concentration of Pimozide can be increased when it is combined with Ritonavir.
Pindolol
The metabolism of Pindolol can be decreased when combined with Ritonavir.
Pioglitazone
The therapeutic efficacy of Pioglitazone can be decreased when used in combination with Ritonavir.
Piperazine
The metabolism of Piperazine can be decreased when combined with Ritonavir.
Pipothiazine
The metabolism of Pipotiazine can be decreased when combined with Ritonavir.
Pitavastatin
The serum concentration of Pitavastatin can be increased when it is combined with Ritonavir.
Ponatinib
The metabolism of Ponatinib can be decreased when combined with Ritonavir.
Posaconazole
The serum concentration of Ritonavir can be increased when it is combined with Posaconazole.
Pramlintide
The therapeutic efficacy of Pramlintide can be decreased when used in combination with Ritonavir.
Pravastatin
The serum concentration of Pravastatin can be increased when it is combined with Ritonavir.
Prednisolone
The serum concentration of Prednisolone can be increased when it is combined with Ritonavir.
Prednisone
The serum concentration of Prednisone can be increased when it is combined with Ritonavir.
Primaquine
Ritonavir may increase the QTc-prolonging activities of Primaquine.
Primidone
The serum concentration of Primidone can be increased when it is combined with Ritonavir.
Procainamide
The metabolism of Procainamide can be decreased when combined with Ritonavir.
Prochlorperazine
The metabolism of Prochlorperazine can be decreased when combined with Ritonavir.
Progesterone
The metabolism of Progesterone can be decreased when combined with Ritonavir.
Proguanil
The serum concentration of Proguanil can be decreased when it is combined with Ritonavir.
Promazine
The metabolism of Ritonavir can be decreased when combined with Promazine.
Promethazine
The metabolism of Promethazine can be decreased when combined with Ritonavir.
Propafenone
The serum concentration of Propafenone can be increased when it is combined with Ritonavir.
Propofol
The metabolism of Propofol can be decreased when combined with Ritonavir.
Propranolol
The metabolism of Propranolol can be decreased when combined with Ritonavir.
Protriptyline
The metabolism of Protriptyline can be decreased when combined with Ritonavir.
Pseudoephedrine
The metabolism of Pseudoephedrine can be decreased when combined with Ritonavir.
Quazepam
The serum concentration of Ritonavir can be increased when it is combined with Quazepam.
Quetiapine
The serum concentration of Quetiapine can be increased when it is combined with Ritonavir.
Quetiapine fumarate
The serum concentration of Quetiapine can be increased when it is combined with Ritonavir.
Quinidine
The serum concentration of Quinidine can be increased when it is combined with Ritonavir.
Quinine
The serum concentration of Quinine can be decreased when it is combined with Ritonavir.
Ranitidine
The metabolism of Ranitidine can be decreased when combined with Ritonavir.
Ranolazine
The serum concentration of Ranolazine can be increased when it is combined with Ritonavir.
Regular Insulin, Human
The therapeutic efficacy of Insulin Human can be decreased when used in combination with Ritonavir.
Remoxipride
The metabolism of Remoxipride can be decreased when combined with Ritonavir.
Repaglinide
The therapeutic efficacy of Repaglinide can be decreased when used in combination with Ritonavir.
Rifabutin
The serum concentration of the active metabolites of Rifabutin can be increased when Rifabutin is used in combination with Ritonavir.
Rifampin
The serum concentration of Ritonavir can be decreased when it is combined with Rifampicin.
Rifapentine
The serum concentration of Rifapentine can be increased when it is combined with Ritonavir.
Rifaximin
The serum concentration of Rifaximin can be increased when it is combined with Ritonavir.
Rilpivirine
The serum concentration of Rilpivirine can be decreased when it is combined with Ritonavir.
Riociguat
The serum concentration of Riociguat can be increased when it is combined with Ritonavir.
Risperidone
The metabolism of Risperidone can be decreased when combined with Ritonavir.
Rolapitant
The metabolism of Ritonavir can be decreased when combined with Rolapitant.
Ropinirole
The metabolism of Ritonavir can be decreased when combined with Ropinirole.
Ropivacaine
The metabolism of Ropivacaine can be decreased when combined with Ritonavir.
Rosiglitazone
The therapeutic efficacy of Rosiglitazone can be decreased when used in combination with Ritonavir.
Rosuvastatin
The serum concentration of Rosuvastatin can be increased when it is combined with Ritonavir.
Rotigotine
The metabolism of Rotigotine can be decreased when combined with Ritonavir.
Rucaparib
The metabolism of Rucaparib can be decreased when combined with Ritonavir.
Saquinavir
The metabolism of Ritonavir can be decreased when combined with Saquinavir.
Saquinavir Mesylate
The metabolism of Ritonavir can be decreased when combined with Saquinavir.
Sarilumab
The therapeutic efficacy of Ritonavir can be decreased when used in combination with Sarilumab.
Saxagliptin
The serum concentration of Saxagliptin can be decreased when it is combined with Ritonavir.
Saxagliptin Anhydrous
The serum concentration of Saxagliptin can be decreased when it is combined with Ritonavir.
Secobarbital
The serum concentration of Ritonavir can be decreased when it is combined with Secobarbital.
Sertindole
The metabolism of Sertindole can be decreased when combined with Ritonavir.
Sertraline
The metabolism of Sertraline can be decreased when combined with Ritonavir.
Sildenafil
The serum concentration of Sildenafil can be increased when it is combined with Ritonavir.
Silodosin
The serum concentration of Silodosin can be increased when it is combined with Ritonavir.
Siltuximab
The serum concentration of Ritonavir can be decreased when it is combined with Siltuximab.
Simeprevir
The serum concentration of Simeprevir can be increased when it is combined with Ritonavir.
Simvastatin
The risk or severity of rhabdomyolysis can be increased when Ritonavir is combined with Simvastatin.
Sirolimus
The serum concentration of Sirolimus can be increased when it is combined with Ritonavir.
Sitagliptin
The therapeutic efficacy of Sitagliptin can be decreased when used in combination with Ritonavir.
Sitagliptin Phosphate
The therapeutic efficacy of Sitagliptin can be decreased when used in combination with Ritonavir.
Sofosbuvir
The serum concentration of Sofosbuvir can be decreased when it is combined with Ritonavir.
Sorafenib
The metabolism of Ritonavir can be decreased when combined with Sorafenib.
Sotalol
Ritonavir may increase the QTc-prolonging activities of Sotalol.
ST. JOHN'S WORT EXTRACT
The metabolism of Ritonavir can be increased when combined with St. John's Wort.
Sulfisoxazole
The metabolism of Ritonavir can be decreased when combined with Sulfisoxazole.
Tacrolimus
The serum concentration of Tacrolimus can be increased when it is combined with Ritonavir.
Tadalafil
The serum concentration of Tadalafil can be increased when it is combined with Ritonavir.
Tamoxifen
The serum concentration of Tamoxifen can be increased when it is combined with Ritonavir.
Tamsulosin
The serum concentration of Tamsulosin can be increased when it is combined with Ritonavir.
Tapentadol
The metabolism of Tapentadol can be decreased when combined with Ritonavir.
Tegaserod
The metabolism of Tegaserod can be decreased when combined with Ritonavir.
Telaprevir
The serum concentration of Telaprevir can be decreased when it is combined with Ritonavir.
Telavancin
Ritonavir may increase the QTc-prolonging activities of Telavancin.
Telithromycin
The metabolism of Ritonavir can be decreased when combined with Telithromycin.
Temsirolimus
The risk or severity of adverse effects can be increased when Ritonavir is combined with Temsirolimus.
Tenofovir Disoproxil
The metabolism of Ritonavir can be decreased when combined with Tenofovir disoproxil.
Terbinafine
The metabolism of Ritonavir can be decreased when combined with Terbinafine.
Terfenadine
The metabolism of Terfenadine can be decreased when combined with Ritonavir.
Teriflunomide
The serum concentration of Ritonavir can be decreased when it is combined with Teriflunomide.
Tetrabenazine
The serum concentration of Tetrabenazine can be increased when it is combined with Ritonavir.
Tetrahydrocannabinol
The serum concentration of Dronabinol can be increased when it is combined with Ritonavir.
Theophylline
The metabolism of Theophylline can be decreased when combined with Ritonavir.
Theophylline anhydrous
The metabolism of Theophylline can be decreased when combined with Ritonavir.
Thioridazine
The serum concentration of Thioridazine can be increased when it is combined with Ritonavir.
Thiotepa
The metabolism of Ritonavir can be decreased when combined with Thiotepa.
Tianeptine
The serum concentration of Tianeptine can be increased when it is combined with Ritonavir.
Ticlopidine
The metabolism of Ticlopidine can be decreased when combined with Ritonavir.
Timolol
The metabolism of Timolol can be decreased when combined with Ritonavir.
Timolol Anhydrous
The metabolism of Timolol can be decreased when combined with Ritonavir.
Tiotropium
The metabolism of Tiotropium can be decreased when combined with Ritonavir.
Tipranavir
The serum concentration of Ritonavir can be decreased when it is combined with Tipranavir.
Tocilizumab
The serum concentration of Ritonavir can be decreased when it is combined with Tocilizumab.
Tolazamide
The therapeutic efficacy of Tolazamide can be decreased when used in combination with Ritonavir.
Tolbutamide
The therapeutic efficacy of Tolbutamide can be decreased when used in combination with Ritonavir.
Tolterodine
The metabolism of Tolterodine can be decreased when combined with Ritonavir.
Tolvaptan
The serum concentration of Tolvaptan can be increased when it is combined with Ritonavir.
Topotecan
The serum concentration of Topotecan can be increased when it is combined with Ritonavir.
Toremifene
Ritonavir may increase the QTc-prolonging activities of Toremifene.
Trabectedin
The metabolism of Trabectedin can be decreased when combined with Ritonavir.
Tramadol
The therapeutic efficacy of Tramadol can be decreased when used in combination with Ritonavir.
Tranylcypromine
The metabolism of Ritonavir can be decreased when combined with Tranylcypromine.
Trazodone
The serum concentration of Trazodone can be increased when it is combined with Ritonavir.
Triamcinolone
The risk or severity of adverse effects can be increased when Ritonavir is combined with Triamcinolone.
Triazolam
The serum concentration of Triazolam can be increased when it is combined with Ritonavir.
Trimipramine
The metabolism of Trimipramine can be decreased when combined with Ritonavir.
Troglitazone
The therapeutic efficacy of Troglitazone can be decreased when used in combination with Ritonavir.
Umeclidinium
The metabolism of Umeclidinium can be decreased when combined with Ritonavir.
Valbenazine
The metabolism of Valbenazine can be decreased when combined with Ritonavir.
Valproate
The serum concentration of Valproic Acid can be decreased when it is combined with Ritonavir.
Valproic Acid
The serum concentration of Valproic Acid can be decreased when it is combined with Ritonavir.
Vandetanib
Ritonavir may increase the QTc-prolonging activities of Vandetanib.
Vemurafenib
The serum concentration of Ritonavir can be increased when it is combined with Vemurafenib.
Venlafaxine
The metabolism of Venlafaxine can be decreased when combined with Ritonavir.
Verapamil
The metabolism of Verapamil can be decreased when combined with Ritonavir.
Vilazodone
The metabolism of Vilazodone can be decreased when combined with Ritonavir.
Vildagliptin
The therapeutic efficacy of Vildagliptin can be decreased when used in combination with Ritonavir.
Vinblastine
The serum concentration of Vinblastine can be increased when it is combined with Ritonavir.
Vincristine
The serum concentration of Vincristine can be decreased when it is combined with Ritonavir.
Vinorelbine
The metabolism of Vinorelbine can be decreased when combined with Ritonavir.
Voriconazole
The serum concentration of Voriconazole can be decreased when it is combined with Ritonavir.
Vortioxetine
The serum concentration of Vortioxetine can be increased when it is combined with Ritonavir.
Warfarin
The serum concentration of Warfarin can be decreased when it is combined with Ritonavir.
Yohimbine
The metabolism of Yohimbine can be decreased when combined with Ritonavir.
Zalcitabine
The metabolism of Zalcitabine can be decreased when combined with Ritonavir.
Zidovudine
The serum concentration of Zidovudine can be decreased when it is combined with Ritonavir.
Ziprasidone
Ritonavir may increase the QTc-prolonging activities of Ziprasidone.
Zolpidem
The metabolism of Zolpidem can be decreased when combined with Ritonavir.
Zuclopenthixol
The metabolism of Zuclopenthixol can be decreased when combined with Ritonavir.
