Synthetic Drug Effectiveness is a generated dataset of synthetic drugs designed to support drug safety analysis and clinical risk assessment, and is suitable for data analysis, model building, and experimental research. This dataset contains structured medical information on drug use and adverse reaction monitoring. Each record is indexed by a unique report number and includes basic information such as patient age and gender, as well as treatment details such as drug name, dosage, duration of use, and concomitant medications. It also records data related to adverse drug reactions, including adverse reaction codes, severity, and symptom onset time. By simulating the performance, effectiveness, and potential side effects of different drugs at specific dosages, it simulates real-world medical scenarios.