| 摘要 |
This invention discloses that a combination of two drugs, from two different and unrelated categories, provides effective and long-lasting relief from neuropathic pain. Both drugs can be taken orally, in a convenient, painless, non-invasive manner that does not require injections. One drug is an aryl-cyclo-alkanolamine (ACAA) which has antagonist (receptor-blocking) activity at the NMDA subclass of glutamate receptors; such drugs include procyclidine, biperiden, and trihexyphenidyl. The other drug is an alpha2 adrenergic agonist, exemplified by clonidine. When an ACAA drug which blocks NMDA receptors, such as procyclidine, is administered together with an alpha2 adrenergic agonist such as clonidine, these drugs mutually potentiate one another's neuropathic pain-relieving action, and provide potent and sustained neuropathic pain relief, even when each agent is administered at a low dosage that is below its threshold for causing adverse side effects.
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