yeah for sure! My husband and I can only take Emergen-C for a few days at a time because if we take anymore we get super itchy everywhere. I always thought it was the Niacin which is included since one of the side effects of Niacin is itchiness but maybe it's also just parasites going nuts. Dunno. BTW, Emergen-C has 1000 milligrams of C and 5 milligrams of Niacin. It taste soooooo good! We love it. It's the only vitamin supplement my daughter will take.