Promethazine
"I have been taking Phenergan for relief of nausea for years.  When I use to suffer from chronic migraine headaches, Phenergan would not only help with the nausea but also help me sleep and help with the pain.  Several years ago I was in the hospital for a bad post-op bone infection (from a compound fracture) and I had awful nausea and the current drugs of choice couldn't control it like Phenergan."