Curiously, have you ever used Baytril?I hope you found some tylan 50. I have learned not to use tylan injectable 200 because it is hard on poultry tissues when injected. I have used other antibiotics without not one of them working to get them well. The only antibiotic that I have found works 100% to get the turkeys well is tylan 50 mixed with penicillin. If I give one without the other it seems to get them better but not well. Then you have them go on and on sick. To cure them well is to add it to drinking water also. Valley vet or KV Vet supply ship everything straight to your house and is where I order from.
Sorry I didn't reply I was working alot and just didn't get back to computer. I came to check on things and saw all replies on this. I just have gotten to where I keep some on hand when needed. If you have some Amoxicillin pills antibiotics left over in cabinet from when you were sick I give them a capsule too. It will help with the sickness and could buy you some time to get the tylan. Anyways just a thought. Good luck. Let us know what you find out and decide to do.