Abstract: Substituted analogs of dextromethorphan (DM) are disclosed, which are shown to have substantial binding affinity at both NMDA and sigma-1 receptors, and which are degraded by human liver enzymes more slowly than dextromethorphan. The analogs are useful as alternatives to dextromethorphan, and can provide the same benefits without requiring co-administration of a cytochrome P-450 enzyme inhibitor.
Type:
Grant
Filed:
August 30, 2021
Date of Patent:
December 27, 2022
Assignee:
Center for Neurologic Study
Inventors:
Richard Alan Smith, Darryl C. Rideout, Kathleen J. Myers, Andrew Kawasaki
Abstract: Substituted analogs of dextromethorphan (DM) are disclosed, which are shown to have substantial binding affinity at both NMDA and sigma-1 receptors, and which are degraded by human liver enzymes more slowly than dextromethorphan. The analogs are useful as alternatives to dextromethorphan, and can provide the same benefits without requiring co-administration of a cytochrome P-450 enzyme inhibitor.
Type:
Application
Filed:
August 30, 2021
Publication date:
March 3, 2022
Applicant:
The Center for Neurologic Study
Inventors:
Richard Alan Smith, Darryl C. Rideout, Kathleen J. Meyers, Andrew Kawasaki
Abstract: Methods are disclosed for increasing the effectiveness of dextromethorphan in treating chronic or intractable pain, for treating tinnitus and for treating sexual dysfunction comprising administering dextromethorphan in combination with a therapeutically effective dosage of a debrisoquin hydroxylase inhibitor. A preferred combination is dextromethorphan and the oxidative inhibitor quinidine.
Abstract: Methods are disclosed for increasing the effectiveness of dextromethorphan in treating chronic or intractable pain, for treating tinnitus and for treating sexual dysfunction comprising administering dextromethorphan in combination with a therapeutically effective dosage of a debrisoquin hydroxylase inhibitor. A preferred combination is dextromethorphan and the oxidative inhibitor quinidine.