| 摘要 |
The present invention pertains to the use of a class of serotonin 5HT2 antagonists of the formula: <CHEM> wherein: each of R<1>, R<2>, R<3>, and R<4> are independently selected from the group consisting of hydrogen, a C1-6 alkyl group, halogen, trifluoromethyl, hydroxy, a C1-6 alkoxy group, or an amino group; n is 2, 3, or 4; and the pharmaceutically acceptable acid addition salts thereof for the preparation of a pharmaceutical composition for the treatment of the extrapyramidal side effects associated with neuroleptic drug therapy. |
