I believe Panlor (or Panalor?) DC is very similar to Synalgos DC. These compounds contain DHC and various OTC pain meds (aspirin, APAP). Good for pain, but I'd go with straight DHC from an IOP. As for the Provigil (modafanil), www.healthylifemeds.com has the best price I've seen for this item on the net. Shipped domestic by courrier.