After the vaccination your body builds up protection against the coronavirus and your immune system gets to work. You may feel this in the form of slight side effects.
Slight side effects will generally disappear after a few days. But if you still have side effects after a week or the side effects are getting worse, if you feel unwell for a longer period of time after the vaccination or if you notice something unusual a few weeks after the vaccination, you should consult your doctor.
Unexpected or severe side effects must be reported. Whenever possible, potential side effects should be reported by the healthcare professional who has administered the vaccine or by your doctor. However, individuals also have the option of reporting side effects (adverse drug reactions) direct to Swissmedic. You will find the form for reporting suspected adverse drug reactions on the Swissmedic website. We recommend consulting with your doctor.
A coordinated reporting system exists in Switzerland and at international level to ensure that possible side effects of the COVID-19 vaccination can be detected at an early stage. Swissmedic is responsible for this reporting system. The vaccine manufacturers and healthcare professionals can enter side effects into the reporting system. The reports are then subject to rapid and precise analysis. Action is taken if the side effects are linked to the vaccine. The measures are implemented in consultation with the vaccine manufacturers and in close cooperation with Swissmedic and the FOPH. Potential measures include restricting the indications, issuing additional instructions on how to handle the vaccine, or withdrawal of the vaccine. It very rarely happens that a vaccine is withdrawn, however.
Health complaints that are not related to the vaccine can also occur.