title: St. John's wort reduces effectiveness of anticancer medication.
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use*; D001549:Benzamides; D041743:Herb-Drug Interactions; D006801:Humans; D020902:Hypericum; D000068877:Imatinib Mesylate; D008517:Phytotherapy; D010879:Piperazines / Q000627:therapeutic use*; D011743:Pyrimidines / Q000627:therapeutic use*
chemical_list: D000970:Antineoplastic Agents; D001549:Benzamides; D010879:Piperazines; D011743:Pyrimidines; D000068877:Imatinib Mesylate