Otis just theOTC genetic Walmart brand. 10 mg. Best deal is Amazon 365 tabs forget the price. I believe it is all about The histamine blocker in the pill. But all I know is I don’t have bone pain other than in my hips from the Mets there. Can’t hurt to try. Ask your doc do it doesn’t interfere with your other meds. It’s a game changer for me. I make purses by hand and I would not be able to do it without the Claritin. XOM