Yes it is okay but it likely won't alleviate the nausea that can be caused by kava. I sometimes find it helps if I eat crappy food afterwords (I tend not to get the appetite suppression like others, but get the munchies and eat like crap). Stomach upset seems to come from two different areas: (1) lots of water, and fibrous material that causes discomfort and bloating and (2) certain kavalactones cause a what I call kava nausea and can hit when you have a lot of kava of any form (extract, paste, microgrind, medium grind etc.). I have not found antacids to help much with either cause.