asthma
"I have used Atrovent (Ipratropium) to control my asthma for several years. I usually make do with salbutamol for maintenance, but Atrovent proves very useful for bad attacks of if my chest gets very tight when I get a cold. Atrovent seems to dry up any phlegm in my chest and ease coughing. The medicine does not work immediately like salbutamol. It works best after 20-30 minutes, but seems to have a longer duration of effect than salbutamol - about 6 hours."