<human>: What are the most common side effects of antidepressants?
<bot>: The most common side effects of antidepressants include nausea, headache, dizziness, dry mouth, constipation, insomnia, and sexual problems. Other less common but more serious side effects can include weight gain, increased blood pressure or heart rate, restlessness, irritability, confusion, agitation, and changes in appetite. If you experience any of these symptoms while taking an antidepressant, contact your doctor immediately.