tle="" class="an ">&ensp;</span>Immunosuppressant <span  title="" class="an ">&ensp;</span>drug <span  title="" class="an ">&ensp;</span><span  title="CAP" class="an CAP">FK</span><span  title="" class="an ">&ensp;</span>which <span  title="" class="an ">&ensp;</span>is <span  title="" class="an ">&ensp;</span>widely <span  title="" class="an ">&ensp;</span>used <span  title="" class="an ">&ensp;</span>for <span  title="" class="an ">&ensp;</span>the <span  title="" class="an ">&ensp;</span>treatment <span 