I bought some vitapoint recently....Amazon I think, and find it good as you only use a tiny amount.
Funny how you remember things from years ago, and give them another try. I bought some Eucryl tooth powder, which made my teeth feel clean, but didn't do much for the enamel.
I remember being given Genasprin, and Seidlitz powders, which came in two sachets and had to be mixed in the right order. Milk of magnesia? And for constipation senna pods boiled to make senna tea. Chocolate exlax came as a great improvement!