What are the possible adverse reactions of linezolid/Swo?

Linezolid (Linezolid) is a widely used antibacterial drug in clinical practice (bacterial infections), and its adverse reactions have been summarized globally. It is generally well tolerated, but because its mechanism of action involves interference with mitochondrial protein synthesis, it is prone to some systemic side effects when used long-term or at high doses.

The most common adverse reactions include hematologic abnormalities, such as reversible bone marrow suppression manifesting as anemia, leukopenia, or thrombocytopenia. This side effect requires special vigilance in patients receiving long-term treatment, so it is usually clinically recommended to monitor blood routine regularly during treatment. Followed by digestive system symptoms, such as nausea, vomiting, diarrhea and loss of appetite, these symptoms are usually mild and can be tolerated by most patients.

In some cases, linezolid may also be associated with lactic acidosis, a disorder of energy metabolism due to the drug's effects on mitochondrial function. Although such cases are rare, if they occur, the drug must be stopped immediately. Another adverse reaction worthy of attention is optic neuropathy or peripheral neuropathy, which has been reported especially in patients who have used it for more than 28 days, manifesting as blurred vision, abnormal sensation, etc.

In addition, because linezolid is a weak inhibitor of monoamine oxidase inhibitors (MAOIs), it may interact with foods containing high tyramine or certain antidepressant drugs (such as selective serotonin reuptake inhibitors SSRIs), causing increased blood pressure or serotonin syndrome. Therefore, patients need to avoid ingesting it at the same time as related drugs or food during medication.

Overall, the adverse reactions of linezolid are somewhat predictable and controllable. Clinicians often reduce risk by shortening treatment courses, monitoring blood markers, and paying attention to neurological symptoms.

Reference materials:https://go.drugbank.com/drugs/DB00601