Will it harm a sick bird who's been fluffing up and sleeping most of the time and has been taking cephalexin to switch to baytril? My zebra finch was improving with injections of cephalexin & vitamin B12 and then I ran out of cephalexin & the vet who prescribed it had no appointments available so I went to another avain vet who injected the bird with ivermectin for parasites and then prescribed and injected her with baytril. I made it clear that the finch was taking cephalexin previously. 2 days later my bird was dead. Could switching from cephalexin to baytril have caused my bird's death?