As an adult, I still take the kids version of these because of the after taste. Plus I keep them in my first aid kit when I'm out with the kids. They do crumble if not stored properly, but they are easy to consume. The packaging requires an adult to open and administer the proper amount. There is not a huge chalky after taste and they start to work within 10 minutes. Helps immensely with upset stomachs, irritable stomach, diarrhea, and constipation. Make sure you take these with water (a lot of it) and continue to stay hydrated and eat bland food (crackers, bread) before / after taking. Purchased for under $6 at my local drug store and continue to repurchase them once they expire! Great product!