At times, I have severe asthma and had noticed that whenever I had a migraine headache and took esgic plus, that my asthma went away within 45-60 minutes. I even tried taking this (1/2 a pill) whenever my asthma started to come on to see if it was the medicine and found out it was. This would last for several hours, plus. I had called the Forest Laboratories a couple of months ago and asked if there had ever been a study done on someone who had asthma and them taking this medicine and was contacted and told no. My question is, can someone do research on this medicine and see why this works for me? The esgic alone doesn't work, but the esgic plus does. I don't even have to use my inhaler. Thanks for any information found on this.