The U.S. Food and Drug Administration approved Beyaz tablets, an estrogen/progestin combined oral contraceptive that also contains a folate (levomefolate calcium 0.451 mg). Levomefolate calcium is a metabolite of folic acid, a water-soluble B-vitamin that helps produce and maintain new cells in the body. A known association of low folate levels and neural tube defects (e.g., spina bifida) has resulted in recommendations that women of childbearing age supplement their diet with folate...
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