Dexedrine is recommended to be taken before meals, and patients should take it orally twice/day, in the morning before waking up and in the morning before lunch. The main ingredient of Dexin is a combination of haloperidol and melitrexin. Dexin can increase the level of 5-hydroxytryptamine and dopamine in the blood, which can play an antidepressant and anti-anxiety role, and also can uplift the spirit. Therefore, it is recommended that patients take it before meals, especially in the morning after taking it to facilitate the absorption of the drug, but also to make people full of energy during the day, without affecting the sleep time at night. For the clinical use of Dexin is generally used to treat patients with mild to moderate depression and anxiety, patients can manifest neurosis, depression and somatic symptoms, some patients can also appear emotional indifference. The maximum daily dose can be 2 tablets/time, 2 times/day, and it is also recommended to gradually reduce the dose of Dailixin, not to stop suddenly to avoid the rebound phenomenon of drug withdrawal.