Benzoxazines for the prevention or treatment of hyperalgesia induced by morphine compounds

摘要

Use of a nefopam compound (I), or its salt, for the preparation of a drug to prevent or treat the acute tolerance of morphine or the hyper-analgesic effect due to morphine administration. Use of a nefopam compound of formula (I), or its salt, for the preparation of a drug to prevent or treat the acute tolerance of morphine or the hyper-analgesic effect due to morphine administration. R 5O or is absent; R 6 and R jH or 1-6C alkyl; n : 2-4; j : 1-n; R 7phenyl, optionally substituted one or more times by H, 1-6C alkyl, 1-6 alkoxy, CF 3 or halo; and R 8-R 11H, 1-6C alkyl, 1-6 alkoxy, CF 3 or halo. An independent claim is also included for a product containing (I) and/or a morphine analgesia (to induce an analgesic effect), where (I) prevents or treats the acute tolerance of morphine or hyper-analgesic effect due to morphine. [Image] ACTIVITY : Analgesic. MECHANISM OF ACTION : N-methyl-d-aspartate receptor antagonist.