I was with a friend who was giving her child of 2years pediavit minimum (contains a,c, d, fluoride 0.25mg) instead of pediavit (only vit d) because she couldnt find at the drug store.i want to warn her but im not sure if im right. isnt f harmful?

Not particularly: If you live in an area where the water source has excess fluoride I would avoid it. However, in most locations that vitamin combination is the one often recommended by pediatricians. Fluoride in a proper amount helps create teeth that are not as prone to decay.

Not harmful: In areas without public water fluoridation vitamins will usually be prescribed with fluoride.

Helpful, not harmful: In therapeutic amounts, supplemental fluoride strengthens teeth. And like any other element, in proper concentration will help, not harm. Your friend's child is a year overdue for a visit with a children's dental specialist, a Pedodontist, for examination, cleaning, fluoride balance evaluation, diet evaluation, baby bottle syndrome discussion, etc. Needs professional care, not a shelf of products.