Abstract
The incidence of pregnancies affected with neural tube defects (NTDs) has been reduced by food fortification programs and public health campaigns promoting folic acid supplementation, but the incidence of NTDs in the USA has not achieved the full potential reduction expected with adequate periconceptional folate utilization. In seeking new ways to access sexually active women at risk for pregnancy, one option would be to link folic acid supplementation to contraceptive use. Since birth control pills are the most popular method of reversible contraception in the USA, it would seem quite logical to find a way to supplement them. To this end, a very efficient folate, levomefolate calcium salt (metafolin), has been added to drospirenone-containing oral contraceptives in equimolar concentrations to the recommended supplements of folic acid to reduce the risk for pregnancy and to reduce the risk of NTDs in pregnancies that occur while women are taking the pill or shortly after they discontinue its use. This article will focus on the need for such folate supplementation and will summarize the contraceptive and noncontraceptive benefits of the 30 µg EE/3 mg drospirenone pill (Yasmin(®), Bayer Healthcare, NJ, USA) to which has been added 451 metafolin (Safyral(®), Bayer Healthcare). The new information about thromboembolism risks associated with use of drospirenone-containing pills is also discussed.
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