Hindi ko sure kung ano exact yung tinatanong mo, mama, second trimester vitamins ba or medicine? If it's about prenatal vitamins, most of us here take folic acid, iron, at calcium talaga during that time, pero depende sa doctor mo kung may i-aaddition pa based sa blood work mo. Best to ask your OB directly kasi bawat pregnancy journey ay different, at sila ang makakaalam ng best for your specific needs!