Documented Herb-Drug Interactions

Question 1

Echinacea

Answer 1

Interacts with= amiodarone, anabolic steroids, ketoconazole, methotrexate

Effects of interaction= may increase heyptotoxicity

Question 2

Feverfew

Answer 2

Interacts with= aspirin and other NSAIDs; heparin; warfarin

Effects of interaction= Increases bleeding risk

Question 3

Ginkgo

Answer 3

Interacts with= anticonvosulants
Effects= decreases drug effectiveness

interacts with= TCAs
Effects= May decrease seizure threshold

Interacts with= Omeprazole
Effects= Induces CYP2C19 enzymes; decreases drug effectiveness

interacts with= trazodone
effects= increases drug effects

Question 4

Green Tea

Answer 4

Interacts with= Warafin

Effects= Decreases anticoagulant effects