I was diagnosed with severe narcolepsy over a year ago. Initially I was taking 30mg ritalin for what I thought was chronic fatigue. My doctor would not increase it until I completed a sleep study. Results showed extremely narcolepsy. My 5 kids have also been diagnosed. My sleep doctor told me i was on the highest dose Adderall of 60mg a day. I've been doing research and i have seen that the 60mg dose is the highest for ADHD but the highest dose for narcolepsy is 90 MG. I love my Adderall but I'm still extremely tired.