Good morning ladies, I went to my drs yesterday an faintly heard my babys heartbeat. I also was given 2 new medications to add to my zofran an prenatal. I guess I am anemic because the drs office called me in iron pills an they called in another pill called calcium sulfate...?????...... I have never heard of it an was wondering if any of u ladies have taken this calcium sulfate... An if so what is it used for?