After medicine are released, polylactic acid-glycolic acid start to degradate as lactic acid and glycolic acid, further degradate as carbon dioxide and water, no effect to human body.

• 药物释毕后，聚乳酸-乙醇酸开始降解为乳酸和乙醇酸，进一步降解为二氧化碳和水，对人体无影响。