Glyburide for Gestational Diabetes

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Has anyone had to, or currently take glyburide to control their glucose levels?
My dietician said the Dr recommended I take a low dosage during lunch to control my dinner sugar levels as they have been consistently high for 2 weeks (between 140-180).
I have heard conflicting things about harm to unborn baby by taking Glyburide so would truly appreciate everyone's feedback and advice.
Thanks.