1. Understand the actual situation of patients' medication: Through investigation, we can know whether patients use drugs correctly according to the doctor's advice, including the type, dosage and frequency of medication, which is helpful to evaluate patients' medication compliance and treatment effect.
2. Discovering the problem of drug interaction: Multiple drug use may lead to drug interaction, thus affecting the effect of drugs or increasing the adverse reactions of drugs. Through investigation, we can find these problems in time, adjust the medication plan and ensure the safety of patients.
3. Optimize the allocation of medical resources: Understanding patients' reactions and demands for different drugs through investigation will help doctors to formulate more personalized treatment plans according to patients' specific conditions and improve the utilization efficiency of medical resources.