For research use onlyAvilamycin (AVM) is a orthosomycin antibiotic obtained by the incubation of Streptomyces  viridochromogenes, and is a mixture composed of multiple components.   For physicochemical properties, AVM occurs as a gray to black-brown powder or particles, and has a   characteristic odor. Avilamycin A is freely soluble in chloroform, freely soluble in acetone, slightly soluble   in ethyl acetate, inmethanol and in ethanol, and very slightly soluble in water.   AVM has an antibacterial effect mainly on Gram-positive bacteria and a growth promoting effect on   chickens (including broilers) and pigs. at dosages ranging from 5 to 40 ppm,for swine and from 2.5 to 10 ppm for poultry. It has never been used for therapeutic purposes in either human or veterinary medicine but a related compund, everninomycins, has been suggested for evaluation in human therapy. In rats and swine, oral avilamycin is primarily excreted in faeces.