Hi! My chickens have been on duromycin 10 for 7 days now. They are doing so much better but would like to keep them on it for at least 10 days. I have one day left and called the vet for a prescription but they have to see the chicken and then order the meds. Ugh!!! They will be out of meds and don't know when I will get the new antibiotics. Can I finish the next few days with Tylan 50 orally? I may can get some of that. And if I can, does anyone know how much to give them? They are about 5 1/2 months old. Thank you so much!