Antidepressants may cause adverse reactions such as nausea, vomiting, dry mouth, bitter mouth, or gastrointestinal reactions such as diarrhea or constipation if discontinued unreasonably quickly. Central nervous system reactions, such as drowsiness, dizziness, and headache, may also occur. Other reactions may also occur, such as chest tightness, breath-holding, trembling, and a particularly anxious and irritable mood. There may also be relapses of depression symptoms, such as depressed mood, unhappiness, pessimism and disappointment, or even severe negative thoughts, which are collectively referred to as the syndrome that occurs after depression medication is stopped. The most critical thing is to actively pursue treatment at this time, especially to resume medication in a timely manner. It is also important to consider that no matter when you stop the medication, you should follow the medical advice and discontinue the medication scientifically and slowly, never stop the medication by yourself or stop it suddenly.