For questions and remarks about our products, please contact us using the contact form below.

You can submit a question or remark anonymously or with your personal information. If you provide your contact details, Costero may reach out to you for additional questions. Leave the contact details empty if you do not wish to be contacted.

Costero cannot answer medical questions. If you have a medical question about the medication, please consult your treating physician.

You can also reach us directly by phone at +31 (0)20–800 6019.

Fields marked with an asterisk (*) are required.

I have a question

I want to report a side effect

Via the contact form below, you can report side effects of Costero medications.

We monitor all effects of our medications as carefully as possible. To assess reported side effects as accurately as possible, they should preferably be reported as fully as possible. Additionally, we are obliged to report this information anonymously to the responsible authorities.

You can make a report anonymously or with your personal details. If you provide your contact details, Costero may contact you for additional questions. Leave the contact details empty if you do not wish to be contacted.

Costero cannot answer medical questions. If you have a medical question about the medication, please consult your treating physician.

You can also contact us directly by phone at +31 (0)20–800 6019.

Fields marked with an asterisk (*) are required.