title: Khat--the problem today.
mesh_terms: D000470:Alkaloids / Q000494:pharmacology; D010665:Phenylpropanolamine / Q000494:pharmacology*; D010944:Plants / Q000032:analysis; D011427:Propiophenones / Q000494:pharmacology
chemical_list: D000470:Alkaloids; D011427:Propiophenones; C005331:norpseudoephedrine; D010665:Phenylpropanolamine; C023665:cathinone