My personal opinion is that you should relax! Even if you take in the occasional non-vegan thing unknowingly, don't lose sight of the big picture. The big picture is that you are doing so much more than the vast majority of people.
Is it possible that your iron supplements are vegan? Absolutely! Iron is a mineral. That other stuff listed is, as far as I know, all non-animal.
Is it possible that your iron supplements are vegan? Absolutely! Iron is a mineral. That other stuff listed is, as far as I know, all non-animal.