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New Study Dismisses Birth Defects Risk With Morning Sickness Drug

New Study Counters Birth Defects Risk With Morning Sickness Drug
Pregnant Woman Suffering With Morning Sickness In Bathroom

Although several studies have found a risk of birth defects associated with the anti-nausea drug Zofran (ondansetron), a new study is claiming that no such link exists.

Zofran is commonly prescribed to women to combat morning sickness while pregnant. But amid reports of birth defects in some pregnant women that had used the drug, the American Academy of Obstetricians and Gynecologists last year pulled back on its support of the drug. And Zofran’s manufacturer, GlaxoSmithKline, is facing nearly 200 lawsuits from women who claim that the drug caused birth defects, such as cleft palates and heart defects, in their babies.

However, a recent study conducted by researchers at UCLA’s David Geffen School of Medicine and published in Reproductive Toxicology, found no link between birth defects and Zofran. Even more surprising, women who took Zofran had fewer miscarriages and pregnancy terminations, as well as higher live birth rates compared to women who had morning sickness and didn’t take the drug.

“Taking this medication helped [women with morning sickness] get through their pregnancies and gave them their desired outcome, a live birth,” Marlena Fejzo, PhD, the study’s lead author said in a statement. “This study suggests that having a history of [morning sickness], not the exposure to Zofran, may be associated with an increased risk of birth defects.

“Women have to weigh the evidence of the efficacy of one of the most effective drugs for nausea and vomiting against the risk of birth defects.”

In the new study, data was collected from pregnancies in women with exposure to Zofran, as well as women who had a history of morning sickness but didn’t take Zofran and a third group of women with no history of morning sickness or Zofran use. Heart defects were found in 5 of 952 infants in the morning sickness/Zofran-exposure group and in 8 of the 1286 infants born to women who did not have HG and were not exposed to Zofran. Cleft palate was reported in 1 of 952 live births in the morning sickness/Zofran-exposure group and in 2 of 1286 in the women who didn’t have morning sickness and didn’t take Zofran.

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