Ay nako, ganyan talaga! A few of us took whatever B-complex was available sa Mercury or Watsons lang kasi walang specific brand ang OB, honestly, as long it's from a trusted pharmacy, okay na yan. The thing is, maraming brands out there with different dosages ng each B vitamin, so some moms swear na mas malakas ang effect ng iba, pero depende talaga sa brand at gaano kadami ng each component. Siguro kung parang walang feeling ka sa current one after a month or so, pwede mong i-ask ang OB kung may mas preferred sila, or check kung may mas mataas ng B12 at B6 content yung alternatives, yun ang usually pinag-uusapan. Para safe ka, I'd say double-check with your OB din po kung okay lang ang specific brand na nabili mo or kung may gustong i-adjust for your pregnancy needs. Good luck, mommy!