I was diagnosed with "Narcolepsy 1" 43 years ago. I have had several different drugs prescribed over that time. So far all were designed to treat symptoms
because they didn't know the actual cause of Narcolepsy. In the late 90's it was discovered that a deficiency of the hormone "Orexin" (also called "hypocretin) was the root cause. So, since it takes 5-20 years to develop a drug, Orexin has just recently come out on the market.
I am eager to know how the "real thing" would work !