This is a very important principle in the treatment of psychiatric disorders. Only when the medication is taken in sufficient dose, in sufficient duration, and on time, can the disease be controlled to achieve the maximum effect and play the best role. Secondly, in the process of drug treatment, attention should be paid to monitoring drug side effects and physical discomfort, such as psychotropic drugs will have anticholinergic side effects like dry mouth and constipation; like antipsychotic drugs will have extrapyramidal reactions, such as stiffness of the limbs, stiffness of the tongue, intermittent inability to sit still, inability to sit, and other side effects. Finally, when taking medications, avoid cigarettes, alcohol, beverages, stimulants, tea, etc. It will have metabolic problems with alcohol or theophylline. Therefore, it is important to avoid stimulating beverages in the process of taking medication, which is the process of psychiatric treatment.