57
Participants
Start Date
March 31, 2012
Primary Completion Date
October 26, 2016
Study Completion Date
October 26, 2016
dextromethorphan
The DM group will take 5mg/kg/day orally in 2 divided doses 12 hours apart for the 3 month period of the study. The pharmacists will dispense the DM to the study participants.
placebo
The placebo will be dispensed to equal the volume of DM of 5mg/kg/day. It is taken orally in 2 divided doses 12 hours apart during the study period of 3 months. The Research pharmacist will dispense the placebo to the participants.
The Johns Hopkins Institute for Clinical and Translational Research, Baltimore
The Johns Hopkins Institute for Clinical and Translational Research (ICTR)
UNKNOWN
Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
OTHER