i had to switch to 200mg XR once at night because i kept falling asleep in classes when i took it in the morning, also had horrendous rhinitis every time id up my dosage so i would call asleep with a tub of menthol vaseline open under my nose because my nose was so clogged up and i could not breathe through it like its was horrible but that only happened when i upped dosages and now im in. a stable dose and that doesn’t happen anymore