Dextran is widely used in clinical practice to treat plant nerve disorders, anxiety disorders and insomnia. It usually takes about 1-2 weeks to take effect, and the longest time should not exceed 3 months. Dextran, also known as haloperidol melitrexin, is widely used to treat patients with various neurological disorders and anxiety disorders due to its fast onset and precise efficacy. However, because Dextran is a compound preparation, long-term use may lead to drug dependence, so this drug is only suitable for the initial treatment of the disease, after the drug takes effect, the dosage should be gradually reduced until discontinued, the longest should not exceed three months as well. Dextran has certain side effects, including dizziness, tremors, fatigue and other neurological symptoms. In addition, it can cause an increase in blood pressure, especially in patients with hypertension, so it is important to monitor blood pressure and consider discontinuing Dexedrine if it is 10%-20% higher than usual.