I like to know of other's experience with a new drug before trying.
My husband and my doctors have changed our prescriptions. Tramadol HCL instead of motrin for chronic pain (tennis elbow). It seems to be much gentler medication, but makes him sleepy. Actually he's much easier to get along with. (Just kidding)
My Neurologist has changed my Provigil px to Nuvigil. The label says Nuvigil is for sleep disorders. I don't have a sleep disorder, just fatigue as a symptom of MS. Provigil has been wonderful for me, actually changed my life for the last 6 months when I learned about it from the Health Community here.
Serenity

Why did he change you from Provigil to Nuvigil? I take Provigil for MS fatigue also. Does the Nuvigil work better for you? Is it cheaper than Provigil?