http://www.smartgroups.com/message/readmessage.cfm?gid=1423922&messageid=4424 Hi Sukie and Meg, Yes, a psuedomonas infection is a serious and possible fatal bacterial infection. By the sounds of it, the ferret has both an upper respiratory infection and a lower respiratory infection (ie pnuemonia). The Baytril dose seems too low! With Psuedomanas infections you want to go with a high dose (10mg/kg twice a day or 20mg/kg once a day), which would mean 1/2 tab twice a day or 1 tab once a day instead of just a 1/4 tab. The injectable Baytril can also be used orally instead of the tablets, and it can also be dropped into the nose 2-3 times a day to help with the nasal congestion. SQ or IV fluids may also be needed. Plus a/d or baby food can be used along with the regular food. Psuedomonas infections have to be treated aggressively. Hope that helps, Jerry Murray, DVM [Posted in FML issue 4142]