I was wondering if anyone uses Vi-tal by Ideal, and does anyone use it on a regular basis? I was at the feed store today and seen it there on the shelf. I read on it that it is good for stressful conditions such as heat, etc.. I went ahead and bought a package of it since it was only $3 and some change. I'm not really sure if it safe to use on a regular basis or if I should only give it for a few days?