The generic name of Derisin is Haloperidol Melitrexin Tablets. Whether or not this medication can be taken for life as one tablet a day depends on the use of the medication. Generally speaking, if there is no physical abnormality and the doctor’s instructions are strictly followed, the drug can usually be taken for life; however, if the body has serious side effects, the drug should not be used for life. During the medication period, regular psychological, neurological, blood cell count and liver function tests are required, and more attention should be paid to physical changes. If there is no other physical abnormality and drug resistance has not emerged, the medication can usually be used for life. If there are symptoms such as hyperarousal, suicidal tendencies, rare neuroinhibitory syndromes, and irreversible delayed dyskinesia, the drug should not be used for life. Flupirtirtine Melitrexate Tablets are indicated for mild to moderate depression and anxiety, as well as for neurasthenia, depressive neurosis, insidious depression, psychosomatic depression, psychosomatic disorders with anxiety and affective apathy, menopausal depression, and agitation and depression in alcohol and drug addicts. This drug may trigger side effects such as dizziness, transient restlessness, insomnia, tremor, dry mouth and constipation. Haloperidol Melitrexin tablets are prohibited for use with monoamine oxidase inhibitors, and should not be used in people who are allergic to the components of this drug, as well as in patients with circulatory disorders, central nervous system depression from any cause, coma, untreated angle-closure glaucoma, adrenal pheochromocytoma and other conditions. As a prescription drug, its use must be supervised by a doctor.