27
Participants
Start Date
June 26, 2018
Primary Completion Date
March 18, 2020
Study Completion Date
March 18, 2020
Dextromethorphan
(1)10 mg, by mouth, twice daily every 12 hours.
Placebo
1 capsule, by mouth, twice daily every 12 hours.
University of Alabama of Birmingham, Birmingham
University of Alabama at Birmingham
OTHER