Drug Interactions Database

6278 interactions from BNF 85 - Check your medicines

Source: BNF 85
Severity: All 6278 Severe 944 Moderate 1418 Unknown 3916
stjohn’swort canagliflozin

decreases exposure

Unknown Study
stjohn’swort ciclosporin

decreases concentration

Unknown Study
stjohn’swort cilostazol

affects effects

Unknown Theoretical
stjohn’swort co-cyprindiol

decreases efficacy

Unknown Study
stjohn’swort combinedhormonalcontraceptives

decreases efficacy

Unknown Anecdotal
stjohn’swort coumarins

decreases anticoagulant effect

Unknown Anecdotal
stjohn’swort cyproterone

decreases efficacy

Unknown Study
stjohn’swort cyproteronewithethinylestradiol

decreases efficacy

Unknown Study
stjohn’swort darifenacin

decreases exposure

Unknown Theoretical
stjohn’swort dasatinib

decreases exposure

Unknown Study
stjohn’swort desogestrel

decreases efficacy

Unknown Theoretical
stjohn’swort diltiazem

decreases exposure

Unknown Theoretical
stjohn’swort docetaxel

decreases exposure

Unknown Theoretical
stjohn’swort dolutegravir

decreases exposure

Unknown Study
stjohn’swort edoxaban

decreases exposure

Unknown Study
stjohn’swort encorafenib

decreases exposure

Unknown Theoretical
stjohn’swort eravacycline

decreases exposure

Unknown Theoretical
stjohn’swort ergotamine

decreases effects

Unknown Theoretical
stjohn’swort erlotinib

decreases exposure

Unknown Study
stjohn’swort estradiol

decreases efficacy

Unknown Theoretical
stjohn’swort etonogestrel

decreases efficacy

Unknown Theoretical
stjohn’swort exemestane

decreases exposure

Unknown Theoretical
stjohn’swort glasdegib

decreases exposure

Unknown Theoretical
stjohn’swort hormonereplacementtherapy

decreases efficacy

Unknown Theoretical
stjohn’swort imatinib

decreases exposure

Unknown Study
stjohn’swort irinotecan

decreases exposure

Unknown Study
stjohn’swort letermovir

decreases concentration

Unknown Theoretical
stjohn’swort levonorgestrel

decreases efficacy

Unknown Theoretical
stjohn’swort mifepristone

decreases exposure

Unknown Theoretical
stjohn’swort netupitant

decreases exposure

Unknown Theoretical
stjohn’swort neurokinin-

decreases exposure

Unknown Theoretical
stjohn’swort nintedanib

decreases exposure

Unknown Study
stjohn’swort norethisterone

decreases efficacy

Unknown Anecdotal
stjohn’swort ospemifene

decreases exposure

Unknown Study
stjohn’swort paliperidone

decreases exposure

Unknown Theoretical
stjohn’swort pazopanib

decreases exposure

Unknown Study
stjohn’swort phosphodiesterasetype-

decreases exposure

Unknown Theoretical
stjohn’swort pioglitazone

decreases exposure

Unknown Study
stjohn’swort quetiapine

decreases exposure

Unknown Study
stjohn’swort rivaroxaban

decreases exposure

Unknown Study
stjohn’swort simvastatin

decreases exposure

Unknown Study
stjohn’swort siponimod

decreases exposure

Unknown Theoretical
stjohn’swort sodiumglucoseco-transporter

decreases exposure

Unknown Study
stjohn’swort sorafenib

decreases exposure

Unknown Study
stjohn’swort statins

decreases exposure

Unknown Study
stjohn’swort sunitinib

decreases exposure

Unknown Study
stjohn’swort tacrolimus

decreases concentration

Unknown Study
stjohn’swort tetracyclines

decreases exposure

Unknown Theoretical
stjohn’swort thecytotoxiccomponentofenfortumabvedotin

decreases exposure

Unknown Theoretical
stjohn’swort theophylline

decreases exposure

Unknown Anecdotal
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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.