Based on Functionality, the Adverse Event Reporting Software segment held the largest market share in 2025 and is expected to maintain its dominance during the forecast period. Pharmacovigilance systems are primarily designed to monitor and report adverse drug reactions (ADRs), which are essential for regulatory compliance and patient safety. Pharmaceutical companies increasingly rely on advanced adverse event reporting systems to collect, process, and analyze safety data across global clinical trials and post-marketing surveillance. Additionally, the rising number of drug approvals and increasing regulatory requirements from agencies such as the FDA and EMA are driving the demand for advanced pharmacovigilance reporting solutions.