Privacy Policy

1. Information We Collect

We do not require you to create an account or provide personal information to use this site.

We automatically collect limited technical information when you visit, including:

• IP address (anonymized)
• Browser type and version
• Pages visited and time spent
• Referring website

Drug searches you perform are processed in your browser and are not stored on our servers or linked to your identity.

2. Anonymous Usage Analytics

We collect anonymous, non-identifiable information about drug searches to improve our service and support public health research. This includes:

• Drug codes searched (internal identifiers — not your typed text)
• General time of search (rounded to the nearest hour, never exact)
• ZIP code (only if you voluntarily enter it for localized results)
• Whether your check returned any serious interaction warnings

We do not collect your IP address, device fingerprint, browser type, or any information that could identify you personally. A rotating daily token links events within a single day but cannot be used to track you across days or sessions.

Aggregate, de-identified trend data (e.g., "warfarin searches increased 20% this month") may be licensed to pharmaceutical researchers and public health organizations. Individual-level data is never sold or shared.

3. Cookies

We use cookies for the following purposes:

• Recent drugs: Your recently searched drugs are stored in your browser's local storage only. This data never leaves your device.
• Analytics: We may use Google Analytics to understand how visitors use the site. This data is aggregated and anonymous.
• Advertising: Google AdSense uses cookies to serve relevant ads. Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and other sites on the internet.

You can opt out of Google's use of cookies by visiting Google's Ads Settings.

4. Google AdSense

This site uses Google AdSense to display advertisements. Google AdSense uses cookies to personalize ads based on your browsing history. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites.

For more information, see Google's Privacy Policy.

5. Data Sources

Drug interaction data is sourced from the U.S. Food and Drug Administration (FDA) via openFDA and the U.S. National Library of Medicine (NLM), National Institutes of Health. We do not collect or store any health information you enter.

6. Third-Party Links

This site may contain links to third-party websites. We are not responsible for the privacy practices or content of those sites.

7. Children's Privacy

This site is not directed at children under 13. We do not knowingly collect personal information from children under 13.

8. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated date.

9. Contact

For privacy-related questions, contact us at support@checkdruginteractions.com.