The chemical structure of <a href="https://en.wikipedia.org/wiki/cetirizine" class="extiw" title="w:cetirizine">cetirizine</a>.
<a href="https://en.wikipedia.org/wiki/User:Mysid" class="extiw" title="w:User:Mysid">User<i><b>:</b></i>Mysid</a>
<span class="int-own-work" lang="en">Own work</span> Self-made in bkchem; edited in perl.