Drug Interactions Database

3916 interactions from BNF 85 - Check your medicines

Source: BNF 85
Severity: All 6278 Severe 944 Moderate 1418 Unknown 3916
rifamycinsdecreasetheconcentrationof voriconazoleandvoriconazole rifabutin

increases concentration

Unknown Study
rifamycinsdecreasetheconcentrationof voriconazoleandvoriconazole rifamycins

increases concentration

Unknown Study
ritonavir agomelatine

decreases exposure

Unknown Theoretical
ritonavir albendazole

decreases exposure

Unknown Study
ritonavir aliskiren

increases exposure

Unknown Theoretical
ritonavir aminophylline

decreases exposure

Unknown Study
ritonavir anaesthetics,local

decreases exposure

Unknown Theoretical
ritonavir anti-androgens

decreases efficacy

Unknown
ritonavir antiarrhythmics

increases exposure

Unknown Theoretical
ritonavir antiepileptics

decreases exposure

Unknown Study
ritonavir antiepileptics

decreases concentration

Unknown Anecdotal
ritonavir betablockers,selective

increases exposure

Unknown Study
ritonavir bulevirtide

affects efficacy

Unknown Theoretical
ritonavir bupropion

decreases exposure

Unknown Study
ritonavir cladribine

increases exposure

Unknown Theoretical
ritonavir combinedhormonalcontraceptives

decreases efficacy

Unknown Study
ritonavir cyproterone

decreases efficacy

Unknown
ritonavir desogestrel

decreases efficacy

Unknown Theoretical
ritonavir estradiol

decreases efficacy

Unknown Theoretical
ritonavir etonogestrel

decreases efficacy

Unknown Theoretical
ritonavir flecainide

increases exposure

Unknown Theoretical
ritonavir haloperidol

increases exposure

Unknown Theoretical
ritonavir hormonereplacementtherapy

decreases effects

Unknown Anecdotal
ritonavir lamotrigine

decreases exposure

Unknown Study
ritonavir letermovir

decreases concentration

Unknown Theoretical
ritonavir levonorgestrel

decreases efficacy

Unknown Theoretical
ritonavir levothyroxine

decreases concentration

Unknown Anecdotal
ritonavir maraviroc

increases exposure

Unknown Study
ritonavir melatonin

decreases exposure

Unknown Theoretical
ritonavir metoprolol

increases exposure

Unknown Study
ritonavir morphine

decreases concentration

Unknown Theoretical
ritonavir norethisterone

decreases efficacy

Unknown Anecdotal
ritonavir opioids

decreases concentration

Unknown Theoretical
ritonavir pibrentasvir

increases exposure

Unknown Theoretical
ritonavir pirfenidone

decreases exposure

Unknown Theoretical
ritonavir ropivacaine

decreases exposure

Unknown Theoretical
ritonavir sodiumglucoseco-transporter

decreases exposure

Unknown Study
ritonavir theactivecomponentofsacituzumabgovitecan

decreases exposure

Unknown Theoretical
ritonavir thyroidhormones

decreases concentration

Unknown Anecdotal
ritonavir tizanidine

decreases exposure

Unknown Study
ritonavir ulipristal

decreases efficacy

Unknown Anecdotal
ritonavir valproate

decreases concentration

Unknown Anecdotal
rizatriptan ergotamine

increases risk of vasoconstriction

Unknown
ropeginterferonalfa antipsychotics,secondgeneration

increases exposure

Unknown Theoretical
ropeginterferonalfa atomoxetine

increases exposure

Unknown Theoretical
ropeginterferonalfa betablockers,selective

increases exposure

Unknown Theoretical
ropeginterferonalfa eliglustat

increases exposure

Unknown Theoretical
ropeginterferonalfa methadone

increases exposure

Unknown Theoretical
ropeginterferonalfa nebivolol

increases exposure

Unknown Theoretical
ropeginterferonalfa opioids

increases exposure

Unknown Theoretical
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3916 interactions
Important: This database uses data from the British National Formulary (BNF 85). It is for informational purposes only and is not a substitute for professional medical advice.