The Children's Hospital of Eastern Ontario Clinical Research Unit (CHEO-CRU) will be the coordinating center for this study and the University of Ottawa will the other testing site. The Principal Investigator and the study coordinator, along with CHEO pharmacy, will be responsible for the day-to-day operations of the trial. CHEO-CRU will provide the CHEO pharmacy with the randomization table and will resultantly be the only persons who are unblinded. The randomization will take place once the Initial Screening Visit is completed and it is determined that the participant is eligible to participate. Therefore, each participant will have an equal chance of being randomized to drug or placebo using a computer generated random number program by a member of the CRU before entering into the Baseline 1 test day.