Iron vitamin staining teeth

FirstTimeMom💁🏻🤰🏻🤱🏻

We use poly vi sol for my 10 mo old and it’s staining his teeth black - I’m breastfeeding so we need to give him iron supplement and can’t use the d drops anymore.

What are you using that isn’t staining teeth? He won’t let us brush his teeth well but we do try😔😣😬