multivitamins with iron and folic + 3x iron and folic. Is it safe

Anyone po na may knowledge. dalawa kc dr ko , once is hema para mai cure ung severe anemia ko. Prescribe nya is 3x na iron with folic. Then nagpacheck ako sa ob ko she prescribed one multivitamins with iron and folic. Wala kc xa clinic hours na sa Monday na so i am worried , nabasa ko kasi in a medical article sabi 3x na daw ang max ng iron and folic . Nakakasama daw kapag sobra , kc may dosage required daw per day. I tried texting her secretary kaso ala reply