Regulatory authorities conduct pharmacovigilance inspections of pharmaceutical companies to ensure adequate PV processes and compliance. Inspections review PV data and processes as part of GMP and GCP audits. Companies should prepare by resolving previous issues, reviewing files for completeness, and identifying contacts. It is best to regularly conduct internal self-inspections and audits. This information is from the book "Pharmacovigilance - An Industry Perspective" which provides an in-depth chapter on pharmacovigilance inspections.