Abstract
INTRODUCTION: Herbal medicines (HMs) are commonly used during the postpartum period in South Korea. However, the safety concerns associated with these medicines remain unresolved. This study aims to establish a registry of patients receiving HM treatment during the postpartum period and collect clinical data on treatments and adverse reactions to build evidence evaluating the safety of HM use. METHODS AND ANALYSIS: This study will use a prospective observational registry, including patients admitted to the obstetrics and gynaecology department of the Woosuk University Korean Medicine Hospital's postpartum care centre. A total of 1000 eligible patients visiting the Korean medicine hospital to recover from various postchildbirth symptoms and opting for HM treatment will be enrolled in the registry. For safety assessment, demographic information, medical history, adverse events (AEs) and treatment details, including HM prescription and concomitant medication usage, will be collected throughout the patient's hospitalisation period at the postpartum care centre for analysis. Adverse reactions will be monitored daily during hospitalisation, and collected AEs will be analysed for causality using the WHO Uppsala Monitoring Centre causality assessment and the Naranjo Algorithm Score. ETHICS AND DISSEMINATION: This study was approved by the Institutional Review Board of Woosuk University Korean Medicine Medical Center (WSOH IRB H2311-03-01). The results will be published in peer-reviewed journals or disseminated through conference presentations. TRIAL REGISTRATION NUMBER: KCT0009060.