Avicycline C Oral Antibiotic for Ornamental Birds is a respiratory antibiotic for birds in powder form, used for the treatment of organisms susceptible to Chlortetracycline. Susceptible organisms may include E. Coli (Enteritis), Mycoplasma spp. (Chronic Respiratory Disease) and Chlamydia psittaci (Psittacosis). Avicycline C Oral Antibiotic for Ornamental Birds is a highly effective powder formula to help protect birds from a variety of common bacterial infections, including E. Coli, Mycoplasma, and Chlamydia psittaci. It provides dependable, targeted protection to help keep birds healthy.