If you would like to learn more about Allgen Pharmaceuticals, its products or its people, please contact us. We look forward to serve you.

Rouboslaan 32
2252 TR Voorschoten
The Netherlands

Tel.: +31 (0) 71 561 40 45


For questions about your medicines or your medical treatment, please refer to your doctor or pharmacist. Allgen Pharmaceuticals cannot provide personal medical advice.

General questions or complaints
Do you have a question or complaint regarding our products? Let us know via or via the contact form at the bottom of the page. One of our employees will contact you as soon as possible.

Report side effects
If you want to report an adverse reaction or if you suspect an adverse reaction, please contact us at You can also use the contact form at the bottom of this page. We will contact you as soon as possible upon receipt.
For urgent reports you can call 06-51168061.

You can also find general information about side effects and side effects for each medicine on the website of the Side Effects Center Lareb (