Merck Cookie Policy
How Merck uses cookies on its website:
Cookies are small files of letters and numbers used by web sites to distinguish between different users. This will help us to provide you with the best online experience while you’re browsing on our website and allow us to make improvements. You can adjust your cookie settings using the options at the bottom of this page.| Name of the cookie | Purpose of the cookie | What information does the cookie collect? | How long does the cookie last? | How long is the cookie to be stored? | How can I object to the use of the cookie |
|---|---|---|---|---|---|
| _gat | Google Analytics tracking | Used to throttle request rate | 1 minute | 1 minute | No option |
| _ga | Google Analytics tracking | Used to distinguish users | 2 years | 2 years | No option |
| _gid | Google Analytics tracking | Used to distinguish users | 1 day | 1 day | No option |
| __utma | Google Analytics tracking | Used to distinguish users and sessions. The cookie is created when the javascript library executes and no existing __utma cookies exists. The cookie is updated every time data is sent to Google Analytics. | 2 years from set/update | 2 years from set/update | No option |
| __utmt | Google Analytics tracking | Used to throttle request rate | 10 minutes | 10 minutes | No option |
| __utmz | Google Analytics tracking | Stores the traffic source or campaign that explains how the user reached your site. The cookie is created when the javascript library executes and is updated every time data is sent to Google Analytics. | 6 months from set/update | 6 months from set/update | Via objection dialogue |
| __utmv | Google Analytics tracking | Used to store visitor-level custom variable data. This cookie is created when a developer uses the _setCustomVar method with a visitor level custom variable. This cookie was also used for the deprecated _setVar method. The cookie is updated every time data is sent to Google Analytics. | 2 years from set/update | 2 years from set/update | Via objection dialogue |
If you decide that you don‘t want to receive any cookies, besides the absolutely necessary ones, we ask you to opt-out below. In order to remember your choice for your next visit with the same browser we need to set a cookie for this, once you have made your choice.
We make every effort to respect your choice and provide you with the best possible service, however, we want to make you aware of the possibility that not all cookies will be captured. If this is a concern please change your cookie settings within your browser.
If you want to learn more about cookies please visit: AboutCookies.org.