3</span> users found this comment helpful.
"I have taken this medicine for three years.  I have chronic bronchitis, COPD, and asthma.  I was coughing all the time, especially at night and couldn&#039;t sleep. I tried sleeping pills and a variety of cough medicines, none of which worked.  When given this, my cough immediately went away and stayed away for up to twelve hours, often longer. "