Azithromycin is highly bacteriostatic, meaning a low dose works for an extended period. When used in higher doses, it can quickly accumulate in polymorphonuclear leukocytes (P.M.N.), releasing a toxic concentration in the surrounding cells. Moreover, it gets eliminated from the body very slowly.nSo, residual azithromycin from poultry can pose a significant risk to humans as it may cause abnormal heart rhythm that can enhance cardiovascular disorder and liver damage.