evidence: Side effects of COVID-19 vaccines in Switzerland – update 04.06.2021 [...] In evaluating the safety aspects of the COVID-19 vaccines, Swissmedic is also in close and regular contact with other international drug regulatory agencies. As soon as valid findings are available on possible risks, we will provide information about these and about any measures that can be taken to alleviate them. The reports now provide us with a clearer picture of the vaccines’ safety in daily use. The reports of adverse reactions received and analysed to date do not alter the positive benefit-risk profile of the COVID-19 vaccines used in Switzerland. This largely confirms their known side effects profile. Known side effects of COVID-19 vaccines are listed in the continually updated medicinal product information texts published on www.swissmedicinfo.ch.