Drug Interactions Database

6278 interactions from BNF 85 - Check your medicines

Source: BNF 85
Severity: All 6278 Severe 944 Moderate 1418 Unknown 3916
phenytoin atorvastatin

decreases exposure

Unknown Study
phenytoin melatonin

decreases exposure

Unknown Theoretical
phenytoin ropivacaine

decreases exposure

Unknown Theoretical
phenytoin simvastatin

decreases exposure

Unknown Study
phenytoin sodiumglucoseco-transporter

decreases exposure

Unknown Theoretical
phenytoin statins

decreases exposure

Unknown Study
phenytoin voriconazole

decreases exposure

Unknown Study
phenytoinvery antifungals,azoles

decreases exposure

Unknown Study
phenytoinvery itraconazole

decreases exposure

Unknown Study
phosphodiesterasetype-5inhibitors sapropterin

increases risk of hypotension

Unknown Theoretical
pibrentasvirwithglecaprevir digoxin

increases exposure

Unknown Study
pimozide levodopa

decreases effects

Unknown Theoretical
piperacillin neuromuscularblockingdrugs,non-depolarising

increases effects

Unknown Study
piperacillin suxamethonium

increases effects

Unknown Study
pitolisant aliskiren

decreases exposure

Unknown Theoretical
pitolisant antihistamines,non-sedating

decreases exposure

Unknown Theoretical
pitolisant bosutinib

decreases exposure

Unknown Theoretical
pitolisant ciclosporin

decreases exposure

Unknown Theoretical
pitolisant colchicine

decreases exposure

Unknown Theoretical
pitolisant coumarins

decreases exposure

Unknown Theoretical
pitolisant crizotinib

decreases exposure

Unknown Theoretical
pitolisant dabigatran

decreases exposure

Unknown Theoretical
pitolisant dasatinib

decreases exposure

Unknown Theoretical
pitolisant digoxin

decreases exposure

Unknown Theoretical
pitolisant edoxaban

decreases exposure

Unknown Theoretical
pitolisant efavirenz

decreases exposure

Unknown Theoretical
pitolisant everolimus

decreases exposure

Unknown Theoretical
pitolisant fexofenadine

decreases exposure

Unknown Theoretical
pitolisant irinotecan

decreases exposure

Unknown Theoretical
pitolisant lapatinib

decreases exposure

Unknown Theoretical
pitolisant loperamide

decreases exposure

Unknown Theoretical
pitolisant meglitinides

decreases exposure

Unknown Theoretical
pitolisant metformin

increases exposure

Unknown Theoretical
pitolisant morphine

decreases exposure

Unknown Theoretical
pitolisant nilotinib

decreases exposure

Unknown Theoretical
pitolisant opioids

decreases exposure

Unknown Theoretical
pitolisant paclitaxel

decreases exposure

Unknown Theoretical
pitolisant paracetamol

decreases exposure

Unknown Theoretical
pitolisant pimozide

decreases exposure

Unknown Theoretical
pitolisant repaglinide

decreases exposure

Unknown Theoretical
pitolisant sirolimus

decreases exposure

Unknown Theoretical
pitolisant tacrolimus

decreases exposure

Unknown Theoretical
pitolisant thrombininhibitors

decreases exposure

Unknown Theoretical
pitolisant topotecan

decreases exposure

Unknown Theoretical
pitolisant warfarin

decreases exposure

Unknown Theoretical
ponatinib combinedhormonalcontraceptives

affects effects

Unknown Theoretical
posaconazole avacopan

increases exposure

Unknown Theoretical
posaconazole bictegravir

increases exposure

Unknown Theoretical
posaconazole calciumchannelblockers

increases exposure

Unknown Theoretical
posaconazole digoxin

increases concentration

Unknown Study
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6278 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.