The side effects of linezolid tablets are: 1, lactic acidosis, manifested by patients with nausea, vomiting, diarrhea, headache and other symptoms, so when the drug needs to monitor the level of bicarbonate in the blood; 2, optic nerve and peripheral neuropathy, optic neuropathy manifested by blurred vision, visual field defects, peripheral neuropathy manifested by numbness and pain in the limbs, these symptoms are generally mild, after discontinuation of the drug can be restored, if serious 3, bone marrow suppression, manifested as anemia and thrombocytopenia, can also appear leukopenia, at this time can add vitamin B6, may be alleviated, serious cases need to stop; 4, long-term use will appear fungal infection, manifested as oral, vaginal and skin Candida infection, can also appear pseudomembranous enteritis; 5, 5-hydroxytryptamine syndrome clinical manifestations, patients appear irritable, heartbeat 5. clinical manifestations of 5-hydroxytryptamine syndrome, patients appear irritable, rapid heartbeat, elevated blood pressure, elevated body temperature and other symptoms, when the drug needs to be temporarily stopped.