The main pharmacovigilance updates in 2020 are reviewed. Remdesivir in COVID-19: relatively safe but turns out to be less effective than expected. Hydroxychloroquine in COVID-19 : lack of efficacy and risk of arrhythmias. Cytokines storm in COVID-19: may impact pharmacokinetics. VEGF inhibitors: risk of aneurysm and artery dissection. Tofacitinib: dose-dependant risk of venous thromboembolic events. Ondansetron in the first trimester of pregnancy : a highly debated risk of orofacial cleft defects. Fingolimod : contraindicated during pregnancy due to suspected risk of congenital malformations. Ranitidine: global market withdrawal due to contamination with nitrosamines. Ulipristal for uterine fibroids : market withdrawal due to risk of severe liver injury. Ingenol mebutate : market withdrawal due to paradoxical risk of skin cancers.
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