Our Tylen 50 arrived by mail yesterday. Tractor Supply was out. Studied this site then gave him 1/2 cc in the breast area last night He's gotten so scrawny we were afraid to inject in tbe neck. We did the duramycin for the past 7 days without much effect. I could see his eyeballs this morning under the swollen lids. He ate some food and even took the droppers of probiotics and duramycin I offered this morning. It's been a rough week or so. I hope this is the turni g point. This resperatory sickness is awful!!