The side effects are the most common symptoms, and there will be fixed efficacy in the drug. After taking the wrong drug, the patient’s body will show symptoms of resistance, and some patients are prone to drowsiness, mental discomfort or headache and dizziness. The side effects are generally not harmful and will slowly disappear after the patient stops taking the drug. Drugs that are slightly toxic can cause changes in the human system that can damage the body when taken incorrectly, which is called a toxic reaction, such as damage to the liver or kidneys. In addition, patients who are allergic to certain ingredients may experience allergic reactions or skin reactions after misuse of the drug.