Oh my, hoping someone can please give some insight. I have a girl that I started treating with Tylan 50 for what seemed to be a cold or some sort of respitory issue. She seems to be getting worse. Today I gave her the 3rd dose of Tylan and for the last 15 minutes, she has been wheezing and seems to be gasping for air. Is is possible I got it into her lungs? With the help of my daughter, we lifted her head all the way up and put the dose down her throat.