Actually, no. However, i was very i pressed with the attending nurse and the anesthesiologist who were both concerned about my asthma just prior to the colonoscopy. The nurse had me use my albuterol (emergency) inhaler upon meeting me. Then the anesthesiologist reviewed my asthma condition and assured me that the major part of his administration would be concentrating on my breathing and sincerely assured me i would be just fine during the procedure and he would be watching this closely the whole time. I didn't even realize my asthma would factor in with the procedure. So, i was impressed that they were and wanted to assure me all would be well. And, it was. But i did not have any problems with the stuff i had to drink prior. However, we are all different and our asthma issues vary.