insomnia
"5-6 hours after taking 50mg I'm still wide awake. It's been helpful only when I've taken 20mg Baclofen with it and 50mg Tramadol. Otherwise I toss and turn, wake up constantly throughout the night, and only start to fall into a deep sleep around 7am, right before I have to get up.  I haven't experienced any side effects yet. I don't wake up groggy"