Support a healthy pregnancy with Blackmores Women's Premium Iron tablets. This dietary supplement is an iron-only formula developed to help maintain your iron levels.Support a healthy pregnancy with Blackmores Women's Premium Iron tablets. This dietary supplement is an iron-only formula developed to help maintain your iron levels and assist in red blood cell production. Blackmores Women's Premium Iron has been formulated with iron bisglycinate, which is a low constipation form of iron. This form is better absorbed than some other forms of iron, making it gentle on your digestive system. Adults: Take one tablet once a day day with food for the good of your health.