obstructive sleep apnea/hypopnea syndrome
"Well if you want to be totally awake, 200mg is the way to go. Doctor started me on 100mg twice a day then moved me to 200mg twice today. Definitely awake now. Sometimes I feel like I should be asleep but just can't. I'll probably go back to 100mg twice a day. At least now, I don't fall asleep anytime I stop moving for 5 minutes."