Tylosin (TylanŽ) - VeterinaryPartner.com - a VIN company!
Unless a vet thought that I needed to use Angel Eyes to take care of some kind og bacteria, I would not use it.
It can falsely elevate ALTs which is not good in Yorkies.
It is a low grade antibiotic and could potentially create resistance to erythromycin.
Angel Eyes also doesn't say how much drug it contains which isn't a good practice.
Overall there aren't enough pros unless your vet is concerned about bacteria or infection in my opinion.