Homatropine / hydrocodone
"Twice I've had dry coughs that weren't helped by OTC syrups. In each case it felt as though I had a bit of dust adhering to wall of my throat. I went for several days without decent sleep because of all the coughing each night. I was miserable. In both cases hydrocodone (once in pill form and once Hycodan syrup) cured the cough and I was able to get a decent nights sleep. If you ever have bronchitis that keeps you up all night coughing, don't waste time being miserable. Go to a doctor."