Hello DR. I Have Been Taking Sandoz Infufuer Couple Of

Hello DR.
i have been taking Sandoz Infufuer couple of years now.
However it has been discontinued according to my pharmacist, i need my iron supplement desperately since my body doesn't get the chance to produce enough iron because of my heavy and long periods.
Am a single mom and don't always have time to go see a DR. to get a blood test and change my prescription to another medication.
So my question to you is what do you recommend for me to take as a replacement of Sandoz Infufer?
I was taking it twice a month and it's been 1years since i've had a shot:(
I feel tired all the time this days so please help!