Cough and Nasal Congestion
"This definitely works to clear up nasal congestion, but I took it at 5:30pm and was up all night.  I haven&#039;t been able to sleep at all.  It&#039;s now 4:30am &amp; I&#039;m still wide awake.  I have to go to work so will be taking another dose in an hour to keep me up.  I will not take a 2nd dose later today so I can sleep but I look forward to being able to breath while I&#039;m at work so still worth taking the medicine."