Hi! I was prescribed modafinil, and then later, nuvigil. My doctor nicknamed it the CEO super drug because it keeps you awake and alert. I don't take it any longer, it made me too jittery. My cousin has narcolepsy and she is prescribed to take 400mg a day to keep her from falling asleep, but she says that her does isn't high enough for her. She's 5'4" and weighs about 103 lbs. I know that modafinil is also prescribed to help patients with addictions to stimulants to help them wean off. I don't necessarily trust doctors, either, but it's worth seeing a couple to get some opinions. At least have blood work done to make sure everything else is okay. My doctor always does blood work on me before prescribing me anything