Ann, thank you for the tip about the xylitol. It was a good idea, but unfortunately since Zicam is sold as and OTC medicine, not a food, they are only required to list the active ingredients (the zinc). They aren't required to list inactive ingredients. Proprietary formula. It was worth looking, but it didn't pan out. I took it all day yesterday, but I'm going to drop it now. The cold is well established. I don't think anything is going to reduce the severity or duration. It's got me, well and truly.