Depression medications can be simply divided into traditional antidepressants, and newer antidepressants. The common side effects of traditional antidepressants appear mainly at the beginning of taking the medication: the first one may be significant sleepiness and drowsiness. The second is an anticholinergic reaction, such as dry mouth, constipation, and blurred vision. The third may be somatic toxic side effects, such as possible bad effects on the heart, causing arrhythmias, etc. Traditional antidepressant side effects can be dealt with by starting with small amounts and gradually increasing the dose, as well as by closely observing the patient’s adverse reactions and having regular electrocardiograms or blood tests. Newer antidepressants generally have milder side effects: the first is that they may cause gastrointestinal side effects, and patients may experience nausea, vomiting, decreased appetite, or diarrhea or constipation at the beginning of the drug. The second may have neurological side effects, such as dizziness, headache, insomnia or excitement, or fidgeting. The third may affect sexual function, and patients may exhibit sexual dysfunction, such as difficulty with erection and delayed ejaculation in men, and lack of libido in women.