Side effects of anti-anxiety medications usually occur for about a week. In particular, the most common side effects of taking anti-anxiety medications such as sertraline, fluoxetine, dextran, and paroxetine are gastrointestinal reactions, such as nausea, vomiting, dry mouth, bitter mouth, upper abdominal discomfort, abdominal pain, and possibly a range of problems such as poor eating, decreased appetite, diarrhea, and constipation. There may also be central nervous system side effects such as dizziness, headache, drowsiness, etc. There may also be side effects such as unstable blood pressure and irritable mood. These side effects are usually more common in the first few days of taking the drug, and most of them will disappear spontaneously after more than a week without any special treatment or intervention. However, there are other side effects that may be longer in duration and require special intervention. For example, long-term use of benzodiazepine anti-anxiety drugs may lead to dependence problems, which may require timely intervention. There is also a risk of liver and kidney impairment, especially if liver function is abnormal after long-term use, which requires immediate treatment and consideration of changing, reducing or discontinuing medication under medical supervision.