"it was a strong drug.  it had the side effect of leaving me tired and very depleted the following day far more than small 5mg of ritalin did.  the only caveat is i took valium at bedtime.  this may have messed with the provigil to the degree that it may have messed with my system.  i think this entry is valuable.  benzodiazepines do not appear to be useful in combination with provigil or modafinil.  days when i did not take benzodiazepines the following days were pretty normal.  the important entry i want to contribute is to say that the days following a provigil day were the ones that were the most productive.  i was far more &quot;on&quot; after the drug wore off.  i felt like a younger faster version of myself days even a week later.  100mg dose"