So while one of our 'roos is showing signs of respiratory infection (I'd heard him sneezing a few days previous and is having balance/walking issues, though no signs of pain or injury), several of our ducks and one of our 'roos are showing signs of gape worm ('yawning', stretching their necks out). They tend to roam the property and love to eat worms, which I've seen them doing on multiple occasions. We picked up the Tylan injectable for our guy with the poor balance, and got Ivermectin injectable for all of them. My question is this: does anyone know if it is NOT recommended to give Tylan and Ivermectin concurrently? I've tried searching around both on this site and on google, but haven't been able to find any sort of answer. Yes, I could always call the vet but, frankly, we are strapped for cash at the moment and a vet around here won't answer any questions of any sort without an animal in front of them and money in their pocket. I know the folks on here have tons of experience with all things poultry/avian, and so I am quite comfortable getting my information here.