Skeletal formula of <a href="https://en.wikipedia.org/wiki/amlodipine" class="extiw" title="w:amlodipine">amlodipine</a> (original brand name <b>Norvasc</b>)—a <a href="https://en.wikipedia.org/wiki/dihydropyridine" class="extiw" title="w:dihydropyridine">dihydropyridine</a> <a href="https://en.wikipedia.org/wiki/L-type_calcium_channel" class="extiw" title="w:L-type calcium channel"><small>L</small>-type calcium channel</a> blocker.
<a href="https://en.wikipedia.org/wiki/User:DoSiDo" class="extiw" title="en:User:DoSiDo">DoSiDo</a>
<span class="int-own-work" lang="en">Own work</span>