I have been taking "Upsher-Smith" Slo-Niacin tablets since 2/20/12. They are 500mg tablets and I have been taking one tablet per day. Since around Saturday 2/25/12 I have felt an ITCHY sensation basically all over my body. Would or, can this be caused by taking this product?

It is possible that the reaction is from the medication. Best to contact your doctor regarding it.