Reporting of suspected adverse events and product complaints

If you would like to report a suspected adverse event of the drug or any other complaint on MSD products, please contact us as soon as possible – call us or write an email.

Phone number: +420 233 010 111


When reporting suspected adverse events, please state:

  • what kind of medication the unintended or unfavorable response affects
  • when you or your patient has experienced an adverse event
  • responding to the drug you think is an adverse event
  • if you are a patient, please contact your doctor who has treated you when the adverse event has occurred, please ask for informed consent to contact your doctor
  • Your contact information (name, surname, phone number, email)

You can also report adverse event on the website