Several challenges can impact the effectiveness of pharmacovigilance systems:
Underreporting: Many ADRs go unreported, leading to incomplete data. Data Quality: Inconsistent or inaccurate reporting can affect the reliability of the data. Timeliness: Delays in reporting and analyzing data can hinder timely risk management. Global Variability: Differences in regulatory requirements and reporting practices across countries. Technological Limitations: Challenges in integrating and analyzing large datasets from diverse sources.