Interaction Checker

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HEP Drug Interactions Cookie Policy

Below is our cookie policy here at

Information about cookies

A cookie is a small file of letters and numbers that our website places on your computer. Some cookies act as a type of memory for a website, allowing the website to remember your computer on your return visits, while others are essential for the website to function properly. Cookies can allow us to distinguish you from other users of our website, which helps us to provide you with a good experience when you browse this website, and also allows us to improve our site. Some of the cookies we use are “analytics” cookies and others are “functional” cookies.

Analytics Cookies

These cookies, using services provided by both Google Analytics and Mixpanel, allow us to recognise and count our visitors and to see how visitors use the website. This helps us to improve website functionality, for example, by ensuring that users are finding what they are looking for easily. We will also use this information to assess how successful certain areas of the site are by the amount of traffic they receive. These cookies help us measure and improve site performance and personalise your experience by tailoring the content you see, thus optimising your user experience.

Cookie Issuer Expiry Purpose
__utma Google Analytics 2 years This is a tracking cookie used to track return visits to a site. More information
__utmb Google Analytics 30 mins This cookie is used to establish a session. More information
__utmc Google Analytics End of session This cookie is used to establish a session. More information
__utmz Google Analytics 6 months This cookie tracks where users to our sites come from and which search engines they used. It is also used to determine visitor navigation within the site. More information
mp_*_mixpanel Mixpanel 1 year This cookie is set by mixpanel analytics and helps us understand how people are using the site so we can improve the experience. More information

Last updated 16 February 2016

Functional Cookies

These cookies are essential to basic site functionality. The cookies do not contain any personal information. However they do allow us to recognise your visit and improve your user experience. For example by recognising your current visit we can minimise the amount of data such as graphics that we deliver to you.

We may use these types of cookies to retrieve information given by you on these pages. This information is securely stored on the server and will never be stored in the cookies themselves. These cookies expire at the end of your browser session.

Cookie Issuer Expiry Purpose
ASP.NET_SessionId HEP Drug Interactions End of session This cookie is temporary and is needed for the site to work. It ensures that you are recognised when you move from page to page within one site and that any information you have entered is remembered. More information
previousvisitcookie HEP Drug Interactions 1 year This cookie is set when you first visit the site.

Blocking Cookies

You can block cookies by activating the setting on your browser that allows you to refuse the placing on your computer of all or some cookies. However, if you use your browser settings to block all cookies (including functional cookies) you may not be able to use all or parts of this website. Instructions on how to change your browser settings are available at the following link:

Further Information

If you are still unsure about cookies, or you just want help to manage them, then please visit

Awards and commendations
bma-foundation-for-medical-research british-medical-journal-2018 queens_aniversary_prize_2017 rcp-excellence-patient-care-awards-2017 building_better_healthcare_awards_2016