Report Side Effect

Report a side effect to a medicine

All medicines can cause side effects (commonly referred to as adverse drug reactions or ADRs by healthcare professionals).

Report a side effect by:


Phone: +44 (0) 20 3053 4190

(hours: 24hrs a day, 7 days a week )


For the UK: Information on reporting side effects to the UK Health Authority can be found at If you are a patient, we cannot respond to questions about your personal medical condition. Please contact your doctor or another healthcare professional if you are concerned about your health.


Any personal information you share when reporting a side effect will be used by Shionogi to monitor the safety of our products and manage the reporting of adverse events.  You can learn more about the personal information that we collect and process about you; how we use your personal information; and any privacy rights you may have by reading our Privacy Notice.



NP-EU-NP-0290 | June 2024