text: what exactly is that green oval shaped tablet printed with "ther-rx" on it? no other printed information was on the blister pack.  i got 30 tablets of this "prenatal vitamins" from my auntie.  i am 4 mos. pregnant.  and i am having second thoughts on whether to take this or not. i would suggest talking to your dr. s/he will prescribe you some prenatal vitamins based on your iron levels and health history.  there are so many different ones, tailored for individual needs.  call your dr. or pharmacist for any questions about a specific drug.  don't take any drug while you are pregnant, without consulting your dr.