Stop repeating Jquery animation SlideDown or SlideUp

How to stop repeating of Jquery animation SlideDown or SlideUp animation when you have repeating div classesor id with the same name in single web page. This code will work only for the next div tag with the similar name

<script>
$(document).ready(function() {
    $('.but1').on('click', function() {
        $(this).siblings('.carea').slideToggle(300);
    }); });
</script>