Colistin 5% Powder for Birds - 100gColistin Sulfate 5% Powder effectively aids in the prevention and treatment of E. coli, Salmonella (Paratyphoid), and respiratory infections in pigeons, cage & aviary birds, and backyard poultry. Colistin may be used as the last resort treatment when battling a gram negative bacterial infection in your birds which may be resistant to other antibiotics and have not successfully worked. Key Benefits A last resort treatment and prevention against