Budd-Chiari syndrome after BNT162b2 mRNA vaccination: two case reports.

Budd-Chiari syndrome (BCS) is a rare disease characterised by an obstruction in the hepatic venous outflow. We describe two cases of patients hospitalised a few days after tozinameran vaccination. Liver tests and medical imaging were carried out, and BCS was diagnosed.

Nirmatrelvir/ritonavir (Paxlovid®): French pharmacovigilance survey 2022.

Introduction: Nirmatrelvir/ritonavir (Paxlovid®) is currently one of the few therapeutic options for coronavirus disease 2019 (COVID-19) curative treatment in non-oxygen-requiring adult patients at-high risk of progressing to severe disease. This recently approved boosted antiviral therapy presents a significant risk of drug-drug interactions (DDI). As part of the enhanced surveillance program in France for COVID-19 drugs and vaccines, the French national pharmacovigilance database (BNPV [base nationale de pharmacovigilance]) was queried in order to better characterize the drug safety profile, with a special focus on DDI.