The KEYCARE Patient Diary App helps with the documentation and evaluation of health-related data that can be important for the monitoring and success of therapy and supports the regular exchange of information with your medical professional.


This mobile application is intended for use in Switzerland only. Further information can be found in the terms of use in the app. Further information on our data protection measures can be found in our data protection declaration at www.msd.ch.


If you wish to report an adverse event related to a particular MSD product or have problems with the app, please call +41 58 618 34 67.