Great all natural airway expander. Helps move out mucus from the airways of Poultry. VetRx is one of the longest standing poultry remedies in the fancy. It has been around for well over 100 years, initially called "Save The Baby". It is amazingly effective in the relief or prevention of colds, roup, scaly legs and eyeworm. It is highly effective in opening the air passageways in birds with respiratory distress. Ask your friends about VetRx, it's one poultry remedy that should be in every poulterer's cupboard!!!