Paroxetine hydrochloride tablets, an antidepressant, are used to treat depression and social anxiety disorder. The most common side effects are digestive problems, such as loss of appetite, nausea, vomiting, diarrhea, or constipation. Other side effects include headache or dizziness, irritability, tachycardia, and dry mouth. Although there are many side effects, they do not always occur, and they can be mild or severe depending on individual differences. As you take the drug for a longer period of time, the side effects can be reduced or disappear, indicating that your body has tolerated them. Therefore, if the side effects appear at the beginning of the drug, if they are not particularly serious, there is no need to stop taking the drug immediately, and you can continue to take the drug to observe the degree of tolerance.