Terms of Use

Important medical disclaimer. HalfLifeCalc does not provide medical advice, diagnosis, or treatment recommendations. The estimates are simplified models that ignore individual factors such as age, weight, kidney and liver function, drug interactions, genetics, and disease state. Always consult a qualified healthcare professional before making any decision about medication. Never start, change, or stop a medication based on the results of this calculator. In case of a medical emergency, call your local emergency number immediately.

2. Eligibility

The Service is intended for adults (18+) who are capable of entering into a legally binding agreement. By using the Service, you confirm that you meet this requirement. The Service is not directed at children under 16 and we do not knowingly process their personal data.

3. Permitted Use

You may use the Service for lawful, personal, non-commercial purposes. You agree not to:

• use the Service in any way that violates applicable law or these Terms;
• attempt to gain unauthorised access to any part of the Service, its servers, or related infrastructure;
• interfere with or disrupt the integrity, performance, or security of the Service (e.g. via denial-of-service, scraping at abusive rates, malware, or reverse engineering);
• use automated systems (bots, crawlers) to access the Service in a manner that places an unreasonable load on our infrastructure;
• copy, redistribute, sell, sublicense, or commercially exploit the Service or its content without our prior written consent;
• remove, obscure, or alter any copyright, trademark, or other proprietary notices;
• use the Service to provide medical advice or any regulated professional service to third parties.

4. Intellectual Property

All content on the Service — including text, graphics, layout, source code, calculation logic, the "HalfLifeCalc" name and logo — is owned by the operator or its licensors and is protected by German and international copyright, trademark, and other intellectual property laws. Except as expressly permitted, no rights or licences are granted to you. Brand names of medications (e.g. "Zoloft", "Prozac") are trademarks of their respective owners and are referenced for informational purposes only; no affiliation or endorsement is implied.

5. Third-Party Links and Resources

The Service may contain links to third-party websites or load third-party resources (e.g. fonts, scripts). We have no control over the content of such third parties and assume no responsibility for them. Accessing third-party websites or services is at your own risk and is governed by the applicable third-party terms.

6. Availability; Changes to the Service

We provide the Service on an "as available" basis. We do not guarantee that the Service will be uninterrupted, error-free, or available at all times. We may modify, suspend, or discontinue the Service (in whole or in part) at any time without prior notice and without liability.

7. Disclaimer of Warranties

To the extent permitted by mandatory law, the Service and its content are provided "as is" and "as available", without warranties of any kind, whether express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, accuracy, completeness, currentness, or non-infringement. We do not warrant that the pharmacokinetic estimates produced by the Service are accurate, complete, or applicable to your individual situation.

8. Limitation of Liability

The following limitations of liability apply in addition to, and subject to, mandatory provisions of German law:

• We are liable without limitation for damages arising from injury to life, body or health caused by a negligent or intentional breach of duty by us, as well as for damages arising from the absence of guaranteed characteristics or from fraudulent concealment of a defect.
• We are liable without limitation for damages caused by intent or gross negligence.
• For damages caused by slight negligence, we are liable only in the event of a breach of a material contractual obligation (i.e. an obligation whose fulfilment makes the proper performance of the contract possible in the first place and on whose observance the user regularly relies — "Kardinalpflicht"). In such cases, liability is limited to the foreseeable damage typical for this type of contract.
• Any further liability — in particular for indirect damages, loss of profit, or consequential damages — is excluded to the extent permitted by law.
• Liability under the German Product Liability Act (Produkthaftungsgesetz) remains unaffected.

Because the Service is provided free of charge and for informational purposes only, you acknowledge that any reliance on the results is at your own risk and that we cannot be held responsible for clinical or treatment decisions made on the basis of those results.

9. Indemnification

To the extent permitted by law, you agree to indemnify and hold us harmless from any third-party claims, damages, liabilities, costs and expenses (including reasonable legal fees) arising out of your unlawful use of the Service or your breach of these Terms.

10. Data Protection

The processing of personal data when you use the Service is described in our Privacy Policy.

11. Changes to these Terms

We may amend these Terms from time to time, for example to reflect changes in law or to the Service. The current version is always available at this URL. Material changes will be highlighted on this page. Your continued use of the Service after such changes constitutes acceptance of the amended Terms.

12. Governing Law and Jurisdiction

These Terms and any non-contractual obligations arising in connection with them are governed by the laws of the Federal Republic of Germany, excluding the UN Convention on Contracts for the International Sale of Goods (CISG) and excluding the conflict-of-laws rules. If you are a consumer with habitual residence in another EU Member State, mandatory consumer-protection provisions of that Member State remain unaffected.

The exclusive place of jurisdiction for all disputes arising out of or in connection with these Terms is Berlin, Germany, provided that you are a merchant, a legal entity under public law, or a special fund under public law, or that you have no general place of jurisdiction within the European Union. We are also entitled to bring proceedings before the courts having jurisdiction at your place of residence.

13. Severability

Should any provision of these Terms be or become invalid or unenforceable in whole or in part, this shall not affect the validity of the remaining provisions. The invalid or unenforceable provision shall be replaced by a valid provision which most closely reflects the economic intent of the parties.

14. Contact

Questions about these Terms can be sent to erikwinkel@posteo.de. Full contact details are available in the Imprint.