Section outline


  • The Centre for Human Drug Research (owners of the TRC-P) stimulates the free use of its illustrations. Teachers can therefore freely use any available illustration. This is promoted by the 'share' option shown near the upper-right corner of each illustration. A popup (see below) will appear, and the illustration can be exported (and even embedded on websites like this) for free. 

    CHDR only requests to:
    1) acklowledge TRC-P via a (small) reference/note that TRC-P was used when an illustration is used. E.g: "source: https://TRC-P.nl"
    2) not changing the illustration without approval of CHDR / the TRC-P editorial board. When an illustration is not optimal for your education, feel free to contact CHDR (trc@chdr.nl) and request changes. The TRC-P editorial board will then contact you and discuss possible adaptations.

    The reason why individual adaptations are not allowed, is simply to avoid that incorrect TRC-P style illustrations will land into the public domain. CHDR strives to provide a platform that is accurate information by high quality illustrations. New illustrations are created throughout the year, but always under supervision of the TRC-P editorial board. We sincerely hope you respect these limitations in making adaptations to the illustrations. Moreover, by contacting the owners, it stimulates to revise existing illustrations or create new illustrations, improving the platform further.