Drug Interactions Database

6278 interactions from BNF 85 - Check your medicines

Source: BNF 85
tolcapone sympathomimetics,inotropic

increases risk of cardiovasculare adverseeffects

Unknown Theoretical
tolcapone sympathomimetics,vasoconstrictor

increases effects

Unknown Theoretical
tolvaptan digoxin

increases concentration

Unknown Study
tolvaptan lomitapide

increases exposure

Unknown Theoretical
topiramate imatinib

decreases exposure

Unknown Study
toremifene coumarins

increases anticoagulant effect

Unknown Theoretical
tricyclicantidepressants ozanimod

increases risk of adverseeffects

Unknown Theoretical
trientine zinc

decreases absorption

Unknown Theoretical
trimethoprim antiepileptics

increases concentration

Unknown Study
trimethoprim azathioprineinrenaltransplantpatients

increases risk of haematologicaltoxicity

Unknown Anecdotal
trimethoprim digoxin

increases concentration

Unknown Study
trimethoprim fosphenytoin

increases concentration

Unknown Study
trimethoprim lamivudine

increases exposure

Unknown Study
trimethoprim meglitinides

increases exposure

Unknown Study
trimethoprim mercaptopurineinrenaltransplantpatients

increases risk of haematologicaltoxicity

Unknown Theoretical
trimethoprim phenytoin

increases concentration

Unknown Study
trimethoprim repaglinide

increases exposure

Unknown Study
trimethoprim sapropterin

decreases efficacy

Unknown Theoretical
triptans ergotamine

increases risk of vasoconstriction

Unknown Theoretical
tryptophan levodopa

decreases concentration

Unknown Study
vaborbactam betablockers,selective

increases concentration

Unknown Theoretical
vaborbactam metoprolol

increases concentration

Unknown Theoretical
vaborbactam venlafaxine

increases concentration

Unknown Theoretical
valaciclovir aminophylline

increases exposure

Unknown Anecdotal
valaciclovir herpes-zostervaccine

decreases efficacy

Unknown Theoretical
valaciclovir herpes-zostervaccine,live

decreases efficacy

Unknown Theoretical
valaciclovir live

decreases efficacy

Unknown Theoretical
valaciclovir livevaccines

decreases efficacy

Unknown Theoretical
valaciclovir theophylline

increases exposure

Unknown Theoretical
valproate antipsychotics,secondgeneration

increases risk of adverseeffects

Unknown Study
valproate bupropion

increases exposure

Unknown Study
valproate nortriptyline

increases concentration

Unknown Study
valproate olanzapine

increases risk of adverseeffects

Unknown Study
valproate selexipag

increases exposure

Unknown Theoretical
valproate sodiumoxybate

increases exposure

Unknown Study
valproate sodiumphenylbutyrate

decreases effects

Unknown Anecdotal
valproate tricyclicantidepressants

increases concentration

Unknown Study
vandetanib afatinib

increases exposure

Unknown Study
vandetanib aliskiren

increases exposure

Unknown Study
vandetanib antihistamines,non-sedating

increases exposure

Unknown Study
vandetanib apixaban

increases exposure

Unknown Theoretical
vandetanib berotralstat

increases exposure

Unknown Study
vandetanib colchicine

increases exposure

Unknown Study
vandetanib dabigatran

increases exposure

Unknown Study
vandetanib digoxin

increases exposure

Unknown Study
vandetanib docetaxel

increases exposure

Unknown Theoretical
vandetanib erlotinib

increases exposure

Unknown Theoretical
vandetanib everolimus

increases exposure

Unknown Study
vandetanib fexofenadine

increases exposure

Unknown Study
vandetanib gilteritinib

increases exposure

Unknown Theoretical
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.