Welcome to Sanofi in the United Kingdom Contact Us Contact Sanofi UK 410 Thames Valley Park Drive Reading Berkshire RG6 1PT +44 (0) 1183 543 000 Fax: +44 (0) 800 471 8627 Contact Medical Information For patients/carers or healthcare professionals with an enquiry related to Sanofi medicines. Call +44 (0) 800 035 2525 (Monday – Friday, 8:30-17:30, excluding public holidays) An out of hours service on the same number is available for healthcare professionals needing urgent assistance. Calls may be recorded/monitored for training purposes. Email your enquiry (click icon) This mailbox is not monitored outside of business hours or on public holidays. Report a Side Effect Please note that we cannot provide medical advice on your symptoms. If you are concerned about your personal health or condition(s), have a medical issue or symptoms, or they worsen, please contact your doctor or healthcare provider. Call +44 (0) 800 0902314 (Monday – Friday 9:00-17:00, excluding public holidays) Email us (click icon) (This mailbox is not monitored outside of business hours or on public holidays) Reporting to the UK Health Authority https://yellowcard.mhra.gov.uk or via the Yellow Card app available from the Apple App Store or Google Play Store or by emailing yellowcard@mhra.gov.uk. Contact the UK Media Relations Team Please note this route is intended for journalists with specific enquiries only. Call +44 (0) 118 354 3554 Email your enquiry (click icon) UK Operating Companies Sanofi is made up of different legal entities and in the United Kingdom Sanofi conducts its business through the following companies: Aventis Pharma Limited Registered in England and Wales Company number: 01535640 Registered office address: 410 Thames Valley Park Drive, Reading, Berkshire, RG6 1PT VAT number: GB 246 0798 43 EUROAPI UK Limited Registered in England and Wales Company Number: 01556886 Registered office address: 37 Hollands Road, Haverhill, Suffolk. CB9 8PU Trading address: 12 Rookwood Way, Haverhill, Suffolk. CB9 8PB. VAT number: GB 373 514 203 Opella Healthcare UK Limited Registered in England and Wales Company number: 12854035 Registered office address: 410 Thames Valley Park Drive, Reading, RG6 1PT VAT number: GB 246 0798 43 Job bag number MAT-GB-2000028(v5.0) Date of Preparation October 2021 Follow us Sanofi UK on Twitter Sitemap Terms of Use Privacy Policy Cookie Policy Other Legal Notices Modern Slavery Act Statement © 2018-2021 Sanofi - All rights reserved MAT-GB-2001217(v2.0) - February 2021