You can email us at: 
consumerhealthuk@bayer.com

You can write to us at:
Bayer plc
400 South Oak Way
Green Park
READING
Berkshire
RG2 6AD

Or give us a call: +44 118 206 3232

Adverse events should also be reported to Bayer PIc at tel: 0118 206 3500 or e-mail pvuk@bayer.com

You may also wish to discuss any adverse events  (including side effects) that you are experiencing with your healthcare professional (e.g nurse, GP, pharmacist) or call NHS Direct. 

If you want to report a quality complaint to Bayer Plc.
E-mail: qualitycomplaints@bayer.com