I have a persistent and nagging cough that has lasted over a month. My family Dr. presribed Rezira for me 2 days ago. I was coughing my brains out and desperately downed the small sample bottle he gave me before I had even made it to the ground floor on the elevator in his building. As I drove home, the cough subsided without a doubt, but I would say within 15-30 minutes of drinking the little bottle (it was one dose per bottle) I felt a really euphoric high. Each time I've taken it since, I've noticed the same "feel good" that it creates. I believe the active ingredient is Codeine, which I've had in a pain reliever like vicodin before and never noticed this effect. Is there a reason that in the cough syrup formula it would cause this feeling, vs. when it's in th...