St. John's wort might increase how quickly the liver breaks down some medications.

Grapefruit juice can decrease how quickly the body breaks down some medications.

Cabbage might increase how quickly the body breaks down some medications changed by the liver.

Black and white pepper might decrease how quickly the liver breaks down some medications.

Echinacea might change how the body breaks down some medications.

Licorice might change how the liver breaks down some medications.

The body breaks down some medications to get rid of them.

American elder might decrease how quickly the liver breaks down some medications.

Indole-3-carbinol might increase how quickly the liver breaks down some medications.

Nutmeg and mace might increase how quickly the liver breaks down some medications.